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<!-- Creation Date :2026-03-26T13:50:34.8585+00:00 -->
<!-- Copyright (c) 2026 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PlanNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Plan Name</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity [Abstract]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ChangeInFairValueOfCommonStockWarrantAndOptionLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change in Fair Value of Common Stock Warrant and Option Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ChangeInFairValueOfCommonStockWarrantAndOptionLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Change in fair value of common stock warrant and option liabilities.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts receivable and other receivables</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares Authorized</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseContingentLiabilityWrite-OffsPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Effective income tax rate reconciliation, nondeductible expense, contingent liability write-offs, percent.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseContingentLiabilityWrite-OffsPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contingent Liability Write-offs</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loans Insured or Guaranteed by Government Authorities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loans Insured or Guaranteed by Government Authorities [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value by Liability Class</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value by Liability Class [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Fiscal Period Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Period Focus</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Investments [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Cash and Cash Equivalents, at Carrying Value, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Cash and Cash Equivalents, at Carrying Value, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentDiscontinuedOperationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Discontinued Operations [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentDiscontinuedOperationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Discontinued Operations [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_LaboratoryEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Laboratory equipment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_LaboratoryEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Laboratory Equipment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_LaboratoryEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Laboratory equipment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OutOfPocketCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Out of pocket costs</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OutOfPocketCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Out of pocket costs.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementStrategyAndGovernanceAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management, Strategy, and Governance [Abstract]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset Class</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Class [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statement [Table]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash paid for Acquisition</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLeaseTermAndDiscountRateAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease Term and Discount Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLeaseTermAndDiscountRateAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease Term And Discount Rate [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLeaseTermAndDiscountRateAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Operating lease term and discount rate.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statement [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccruedConsultingFeesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consulting</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccruedConsultingFeesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Consulting Fees Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccruedConsultingFeesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accrued consulting fees current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAcquireeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business Acquisition, Acquiree</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAcquireeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue from Contract with Customer [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenue recognition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted-Average Exercise Price Per Share, Options expired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingencyLawsuitFilingDate1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss Contingency, Lawsuit Filing Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingencyLawsuitFilingDate1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Complaint filing date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Warrants to Purchase Common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrant [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Filer Category</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Filer Category</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Verdeca-BIOX Transactions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Interest Entity Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNoteOutstandingPrincipalAmountReserved_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Promissory Note Outstanding Principal Amount Reserved</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNoteOutstandingPrincipalAmountReserved_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Promissory note outstanding principal amount reserved.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNoteOutstandingPrincipalAmountReserved_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Outstanding principal amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositsAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deposit account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositsAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deposits Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities and stockholders&#8217; equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities and Equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VehiclesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Vehicles [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VehiclesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vehicles [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OffsetAdvertisingAndMarketingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Advertising &amp; marketing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OffsetAdvertisingAndMarketingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offset Advertising And Marketing Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OffsetAdvertisingAndMarketingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Offset advertising and marketing expense.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PayablesAndAccrualsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payables and Accruals [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted Average Exercise Price Per Share, Exercisable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group, Including Discontinued Operation, Costs of Goods Sold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Cost of revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AugustTwoThousandAndTwentyTwoPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">August 2022 Purchase Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AugustTwoThousandAndTwentyTwoPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">August Two Thousand And Twenty Two Purchase Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AugustTwoThousandAndTwentyTwoPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">August two thousand and twenty two purchase agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-Lived Tangible Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Lived Tangible Asset [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Increase (decrease) in net valuation allowance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RevenueFromContractWithCustomerLiabilityCostOfGoodsSoldPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue From Contract With Customer Liability Cost Of Goods Sold Policy [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RevenueFromContractWithCustomerLiabilityCostOfGoodsSoldPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Revenue from contract with customer liability cost of goods sold.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RevenueFromContractWithCustomerLiabilityCostOfGoodsSoldPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cost of product revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Joint venture interest percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Voting Equity Interest Acquired, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskThirdPartyOversightAndIdentificationProcessesFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_July2020PlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">July 2020 Placement Agent Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_July2020PlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">July2020 Placement Agent Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_July2020PlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">July 2020 placement agent warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsCharitableContributionCarryforwards_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Charitable contributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsCharitableContributionCarryforwards_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Assets, Charitable Contribution Carryforwards</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Less valuation allowance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Assets, Valuation Allowance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Deferred Tax Assets, Valuation Allowance, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeitureOutstandingIntrinsicValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Share-based compensation arrangement by share-based payment award, forfeiture, intrinsic value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeitureOutstandingIntrinsicValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-based Compensation Arrangement by Share-based Payment Award, Forfeiture, Outstanding, Intrinsic Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeitureOutstandingIntrinsicValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate Intrinsic Value, Options Forfeited</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">US Federal Statutory Tax Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exercise price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares Issued, Price Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DecemberTwoThousandTwentyPlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">December 2020 Placement Agent Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DecemberTwoThousandTwentyPlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">December Two Thousand Twenty Placement Agent Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DecemberTwoThousandTwentyPlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">December 2020 placement agent warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementThirdPartyEngagedFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management Third Party Engaged [Flag]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentsIncorporatedByReferenceTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Documents Incorporated by Reference</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentsIncorporatedByReferenceTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Documents Incorporated by Reference [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DecemberTwoThousandAndTwentyTwoServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">December 2022 Service and Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DecemberTwoThousandAndTwentyTwoServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">December Two Thousand and Twenty Two Service And Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DecemberTwoThousandAndTwentyTwoServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">December Two Thousand and Twenty Two Service And Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OctoberTwoThousandAndTwentyTwoServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">October 2022 Service and Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OctoberTwoThousandAndTwentyTwoServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">October Two Thousand and Twenty Two Service And Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OctoberTwoThousandAndTwentyTwoServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">October Two Thousand and Twenty Two Service And Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goodwill</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Goodwill, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Goodwill, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Goodwill, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_InventoryGoodsInProcessCurrentAndNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goods in process</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_InventoryGoodsInProcessCurrentAndNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Inventory Goods In Process Current And Non Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_InventoryGoodsInProcessCurrentAndNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Inventory goods ion process current and non current.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateContinuingOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Percent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateContinuingOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Effective Tax Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeStockOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Option to Purchase Common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNoteTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Promissory Note Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNoteTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Promissory note term.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DeferredTaxAssetsAmortizedIntangibles_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred tax assets amortized intangibles.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CorporateSecuritiesReceivedInExchangeForLicenseAgreement_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Corporate securities received in exchange for license agreement</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CorporateSecuritiesReceivedInExchangeForLicenseAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Corporate Securities Received In Exchange For License Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CorporateSecuritiesReceivedInExchangeForLicenseAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Corporate securities received in exchange for license agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNotePrincipalReceviableEachYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Promissory Note Principal Receviable Each Year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNotePrincipalReceviableEachYear_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Promissory note principal receviable each year.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNotePrincipalReceviableEachYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Promissory note principal receivable each year</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfSharesOfCommonStockReceivableFromSaleOfInterestInJointVenture_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of shares of common stock receivable from sale of interest in joint venture.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfSharesOfCommonStockReceivableFromSaleOfInterestInJointVenture_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Shares of common stock receivable from sale of interest in joint venture</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Additional Paid in Capital, Common Stock, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Additional Paid in Capital, Common Stock, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DecemberTwoThousandAndTwentyPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">December 2020 Purchase Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DecemberTwoThousandAndTwentyPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">December Two Thousand And Twenty Purchase Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DecemberTwoThousandAndTwentyPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">December two thousand and twenty purchase agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fixed asset basis difference</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Terms under the plan</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandNineteenSecuritiesPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">June 2019 Purchase Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandNineteenSecuritiesPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">June Two Thousand Nineteen Securities Purchase Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandNineteenSecuritiesPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">June two thousand nineteen securities purchase agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeptemberTwoThousandNineteenPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">September 2019 Purchase Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeptemberTwoThousandNineteenPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">September Two Thousand Nineteen Purchase Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeptemberTwoThousandNineteenPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">September 2019 purchase agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputRiskFreeInterestRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Risk-Free Interest Rate [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetUsefulLife_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Useful life of intangible assets amortized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetUsefulLife_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Asset, Useful Life</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetUsefulLife_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Useful life</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PercentageOfBeneficialOwnershipLimitations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of beneficial ownership limitations</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PercentageOfBeneficialOwnershipLimitations_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of beneficial ownership limitations.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonrelatedPartyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Nonrelated Party [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares Subject to Outstanding, Options granted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_LimagrainCerealSeedsLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Limagrain Cereal Seeds LLC [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_LimagrainCerealSeedsLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Limagrain cereal seeds limited liability company.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementStrategyAndGovernanceTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management, Strategy, and Governance [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreeOptionsSeriesAAndMarchTwoThousandTwentyThreePlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2023 Options - Series A &amp; March 2023 Placement Agent Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreeOptionsSeriesAAndMarchTwoThousandTwentyThreePlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March two thousand twenty three options series A and march two thousand twenty three placement agent options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreeOptionsSeriesAAndMarchTwoThousandTwentyThreePlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Two Thousand Twenty Three Options Series A and March Two Thousand Twenty Three Placement Agent Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TrademarksAndTradeNamesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trademarks and Trade Names [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfKeyTermsAndActivityOfPreferredInvestmentOptionsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Key Terms and Activity of Liability Classified Preferred Investment Options</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Shares Subject to Outstanding, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Shares Subject to Outstanding, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_FirstOfferingPeriodStartDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">First offering period, start date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_FirstOfferingPeriodStartDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">First Offering Period Start Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_FirstOfferingPeriodStartDate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">First offering period start date.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">(Gain) on sale of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gain on sale of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Gain on disposal of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Gain on sale of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable Interest Entity [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableInterestEntityLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Interest Entity [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedTradeNamesAndTrademarks_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business combination recognized identifiable assets acquired and liabilities assumed trade names and trademarks.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedTradeNamesAndTrademarks_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Trade Names And Trademarks</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedTradeNamesAndTrademarks_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trade names and trademarks</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandAndTwentyThreeOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March two thousand and twenty three offering member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandAndTwentyThreeOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Two Thousand And Twenty Three Offering Member</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandAndTwentyThreeOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2023 Offering [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OfficersCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Salary and Wage, Officer, Excluding Cost of Good and Service Sold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OfficersCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total compensation for service</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SoftwareAndComputerEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Software and computer equipment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SoftwareAndComputerEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Software And Computer Equipment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SoftwareAndComputerEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Software and computer equipment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AdditionalPropertiesUnderLeaseAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of additional properties under lease agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AdditionalPropertiesUnderLeaseAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Properties Under Lease Agreement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AdditionalPropertiesUnderLeaseAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Additional properties under lease agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total current liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DeferredTaxAssetsOperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DeferredTaxAssetsOperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Assets Operating Lease Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DeferredTaxAssetsOperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred tax assets operating lease liability.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Accounts receivable and other receivables</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accounts Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustments to reconcile net loss to cash used in operating activities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenues From External Customers And Long Lived Assets [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenues from External Customers and Long-Lived Assets [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ClassOfWarrantsOrRightsIssuanceMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ClassOfWarrantsOrRightsIssuanceMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class Of Warrants Or Rights Issuance Month And Year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ClassOfWarrantsOrRightsIssuanceMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class of warrants or rights issuance month and year.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Changes in Fair Value and Other Adjustments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AugustTwoThousandTwentyTwoOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">August 2022 Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AugustTwoThousandTwentyTwoOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">August Two Thousand Twenty Two Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AugustTwoThousandTwentyTwoOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">August two thousand twenty two options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DomesticCountryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Federal [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DomesticCountryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Domestic Tax Jurisdiction [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DebtAndEquitySecuritiesAccumulatedGrossUnrealizedLossBeforeTax_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Unrealized Losses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DebtAndEquitySecuritiesAccumulatedGrossUnrealizedLossBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt And Equity Securities Accumulated Gross Unrealized Loss Before Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DebtAndEquitySecuritiesAccumulatedGrossUnrealizedLossBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt and equity securities accumulated gross unrealized loss before tax.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ContractResearchAndGovernmentGrantRevenuesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Contract research and government grant revenues.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ContractResearchAndGovernmentGrantRevenuesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract Research and Government Grant Revenues [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ContractResearchAndGovernmentGrantRevenuesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contract Research and Government Grant Revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Increases for tax positions taken in prior years</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounting Standards Update</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stockholders&#8217; equity:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Small Business</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Small Business</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amendment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amendment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AmendmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amendment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CoPackingBusinessSaavyNaturalsProvaultAndSoulSpringBodyCareBrandsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Co-packing business, saavy naturals, provault and soul spring body care brands.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CoPackingBusinessSaavyNaturalsProvaultAndSoulSpringBodyCareBrandsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Co-packing business, Saavy Naturals, ProVault and Soul Spring Body Care Brands [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CoPackingBusinessSaavyNaturalsProvaultAndSoulSpringBodyCareBrandsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Body Care [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated deficit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings (Accumulated Deficit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Retained Earnings (Accumulated Deficit), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Retained Earnings (Accumulated Deficit), Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Retained Earnings (Accumulated Deficit), Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock-based compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-Based Compensation Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate201602Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">ASU 2016-02</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate201602Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update 2016-02 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NonRule10B51ArrModifiedFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Non Rule 10b5-1 Arr Modified [Flag]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NonRule10B51ArrModifiedFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Non rule 10b5-1 arr modified.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DeferredTaxLiabilitiesRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Right of use asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DeferredTaxLiabilitiesRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred tax liabilities right of use asset.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DeferredTaxLiabilitiesRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Right of use asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DeferredTaxLiabilitiesRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Right of use asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_InventoryCurrentAndNonCurrentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Inventories</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_InventoryCurrentAndNonCurrentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Inventory Current And Non Current Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_InventoryCurrentAndNonCurrentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Inventory current and non current net.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MasterTransactionAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Master Transaction Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MasterTransactionAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Master Transaction Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MasterTransactionAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Master transaction agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityWellKnownSeasonedIssuer_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Well-known Seasoned Issuer</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityWellKnownSeasonedIssuer_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Well-known Seasoned Issuer</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Shares Subject to Outstanding, Options Forfeited</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RentMaintenanceAndUtilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued rent, maintenance and utilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RentMaintenanceAndUtilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Rent Maintenance and Utilities Current and Noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RentMaintenanceAndUtilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Rent maintenance and utilities current and noncurrent.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from issuance, aggregate offering prices</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance Initial Public Offering</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EntityPlaceOfIncorporation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Place of incorporation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EntityPlaceOfIncorporation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Place Of Incorporation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EntityPlaceOfIncorporation_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Entity place of incorporation.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromDivestitureOfInterestInJointVenture_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from sale of Verdeca</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromDivestitureOfInterestInJointVenture_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Cash receivable from sale of interest in joint venture</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ChiefExecutiveOfficerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Mr. Comcowich [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityExercisePricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Preferred investment options liability exercise price per share.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk [Line Items]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CorporateExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Corporate expenses.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreeSecuritiesPurchasePurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2023 Purchase Agreement [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Less accumulated depreciation and amortization</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line One</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CustomerCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Customer C</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNoteInterestDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Promissory note interest description.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SellingGeneralAndAdministrativeAndResearchAndDevelopmentExpensesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Selling, general and administrative and research and development expenses.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskBoardCommitteeOrSubcommitteeResponsibleForOversightTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax, Total</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Type</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfAdoptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounting Standards Update</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfAdoptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IssuanceCostsAllocatedToLiabilityPreferredOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance costs allocated to liability preferred options</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IssuanceCostsAllocatedToLiabilityPreferredOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Issuance costs allocated to liability preferred options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IssuanceCostsAllocatedToLiabilityPreferredOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Issuance Costs Allocated to Liability Preferred Options</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LessorOperatingLeaseAssumptionsAndJudgmentsValueOfUnderlyingAssetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessor, Operating Lease, Assumptions and Judgments, Value of Underlying Asset, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LessorOperatingLeaseAssumptionsAndJudgmentsValueOfUnderlyingAssetAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Recognition of additional right-of-use asset and lease liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Right-of-Use Asset, Periodic Reduction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandTwentyOneWarrantsPrivatePlacementOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">January two thousand twenty one warrants private placement offering.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandTwentyOneWarrantsPrivatePlacementOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">January Two Thousand Twenty One Warrants Private Placement Offering [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandTwentyOneWarrantsPrivatePlacementOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">January 2021 Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Components of Deferred Tax Assets and Liabilities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_HumanCapitalAndTechnology_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Human Capital And Technology</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_HumanCapitalAndTechnology_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Human capital and technology.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_HumanCapitalAndTechnology_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Human capital &amp; technology</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_HumanCapitalAndTechnology_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Human capital &amp; technology</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedInvestmentGainsLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Realized Investment Gains (Losses)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedInvestmentGainsLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Realized Investment Gains (Losses), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RealizedInvestmentGainsLosses_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gain on receipt of Above Food Ingredients, Inc. common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFinStmtErrorCorrectionFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Financial Statement Error Correction [Flag]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Shares Subject to Outstanding, Options Exercised</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of shares related to employee stock options exercise, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_DE_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Germany</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_DE_lbl" xlink:role="http://www.xbrl.org/2003/role/label">GERMANY</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfFiniteAndIndefiniteLivedIntangibleAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of finite and indefinite lived intangible assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfFiniteAndIndefiniteLivedIntangibleAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Finite And Indefinite Lived Intangible Assets Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfFiniteAndIndefiniteLivedIntangibleAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Intangible Assets, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RemainingWarrantsExpirationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Remaining warrants expiration period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RemainingWarrantsExpirationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Remaining Warrants Expiration Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RemainingWarrantsExpirationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Remaining warrants expiration period.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfTechnologyDevelopmentPrograms_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of development programs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfTechnologyDevelopmentPrograms_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Technology Development Programs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfTechnologyDevelopmentPrograms_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of technology development programs.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current Fiscal Year End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Current Fiscal Year End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Long-Term Debt Instruments [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JohnSperlingFoundationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">John Sperling Foundation [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JohnSperlingFoundationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">John Sperling Foundation [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JohnSperlingFoundationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">John sperling foundation.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeriesAPreferredInvestmentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Series A preferred investment options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeriesAPreferredInvestmentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series A Preferred Investment Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeriesAPreferredInvestmentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Series A Preferred Investment Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfInventoryCurrentAndNonCurrentTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Inventories</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfInventoryCurrentAndNonCurrentTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Inventory Current And Non Current Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfInventoryCurrentAndNonCurrentTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. Includes current and non-current inventory balances.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receivables [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CustomerRelationshipsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Customer Relationships [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CustomerRelationshipsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Customer List [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, State or Province</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, State or Province</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_FairValueOfCommonStockAndPreFundedWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair value of common stock and pre-funded warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_FairValueOfCommonStockAndPreFundedWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value of Common Stock and Pre-funded Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_FairValueOfCommonStockAndPreFundedWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of common stock and pre-funded warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PercentageGrossProceedsReceivedFromExerciseOfOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage gross proceeds received from exercise of options</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PercentageGrossProceedsReceivedFromExerciseOfOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Gross Proceeds Received From Exercise Of Options</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PercentageGrossProceedsReceivedFromExerciseOfOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage gross proceeds received from exercise of options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Accounts receivable and other receivables</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accounts and Other Receivables</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_EquityMethodInvesteeNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment, Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_EquityMethodInvesteeNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Comprehensive Income (Loss), Net of Tax, Attributable to Parent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Comprehensive loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total number of shares reserved for issuance under plan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Capital Shares Reserved for Future Issuance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Discontinued Operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RisksAndUncertaintiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Risks and Uncertainties [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class of Warrant or Right</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementGeographicalAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Geographical</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementGeographicalAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographical [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityLenderDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of Credit Facility, Lender</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityLenderDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Lender [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Liability, Revenue Recognized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from accounts receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value assumptions, value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Share-based compensation arrangement by share-based payment award, fair value assumptions, value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts Receivable [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Receivable [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandEighteenPlacementAgentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2018 Placement Agent Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandEighteenPlacementAgentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Two Thousand Eighteen Placement Agent [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandEighteenPlacementAgentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March two thousand eighteen placement agent.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableTradeCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable - trade</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableTradeCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable, Trade, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Fixed consideration allocated to sale of membership interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from sale of Verdeca - earn-out received</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfEquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Sale of Equity Method Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">State and Local Income Taxes, Net of Federal Income Tax Effect</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LicenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">License Revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LicenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">License</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_July2020WarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">July 2020 warrants.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Research and development credits</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement Inputs and Valuation Techniques [Table]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsInventory_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Inventory reserve</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid and other current assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OtherThanTemporaryImpairmentsOnInvestmentsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Other than temporary impairments on investments.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Shares Subject to Outstanding, Options Expired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromSettlementsWithTaxingAuthorities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Settlements</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreePlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2023 Placement Agent Options [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreePlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March Two Thousand Twenty Three Placement Agent Options.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_March2023AndAugust2022OptionsAndPlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March 2023 and August 2022 Options And Placement Agent Options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_March2023AndAugust2022OptionsAndPlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March 2023 and August 2022 Options And Placement Agent Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandEighteenPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">June 2018 Purchase Agreement [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandEighteenPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">June two thousand eighteen purchase agreement.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_Non-AccountableExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Non-accountable expenses.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ContractResearchAndGovernmentGrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contract Research And Government Grants</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandTwentyOnePrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">January two thousand twenty one private placement.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisposalGroupIncludingDiscontinuedOperationWriteDownOfInventories_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disposal group including discontinued operation write-down of inventories.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMark-To-MarketAdjustmentsAmount_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Mark-to-Market Adjustments</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseOptionToExtend_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease option to extend, description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseOptionToExtend_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Option to Extend</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLeaseLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLeaseLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease Liabilities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLeaseLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Operating lease liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CustomerFOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Customer F One.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CustomerFOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Customer F</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CustomerFOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Customer F One [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Intangible assets, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Groups, Including Discontinued Operations [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Major Classes of Line Items Constituting Discontinued Operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Selling, general and administrative</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Selling, General and Administrative Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Selling, general and administrative</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total SG&amp;A</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Maturity Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt instrument maturity date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Minimum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Minimum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Instrument</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instrument [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current assets:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Current [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandNineteenPlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">June 2019 Placement Agent Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandNineteenPlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">June Two Thousand Nineteen Placement Agent Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandNineteenPlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">June two thousand nineteen placement agent warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_InducementStockOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Inducement stock option.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_InducementStockOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Inducement Stock Option [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_InducementStockOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Inducement Stock Option [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandTwentyOneSecuritiesPurchasePurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">January two thousand twenty one securities purchase purchase agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandTwentyOneSecuritiesPurchasePurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">January Two Thousand Twenty One Securities Purchase Purchase Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandTwentyOneSecuritiesPurchasePurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">January 2021 Purchase Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 3 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 3 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EntityReincorporationStateCountryName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Place of reincorporation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EntityReincorporationStateCountryName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Reincorporation State Country Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EntityReincorporationStateCountryName_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">State or Country Name where an entity is re-incorporated.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BioceresCropSolutionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bioceres Crop Solutions [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BioceresCropSolutionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Bioceres Crop Solutions [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BioceresCropSolutionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Bioceres Crop Solutions.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AfricaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Africa</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AfricaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Africa [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_August2019ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">August 2019 Service and Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_August2019ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">August2019 Service And Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_August2019ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">August 2019 service and performance warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrealized Gain (Loss) on Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnInvestments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Unrealized gain subsequent to receipt of Above Food Ingredients, Inc. common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current liabilities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Current [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProductMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Product Revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProductMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Product</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProductMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Product [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transactions [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Stockholders Equity, Beginning Balance, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Stockholders Equity, Ending Balance, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubleaseIncome_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Sublease income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubleaseIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sublease Income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLossCarryforwards_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate amount of net operating loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLossCarryforwards_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Loss Carryforwards</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLossCarryforwards_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Operating Loss Carryforwards, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Accounts receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Receivable, after Allowance for Credit Loss, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Accounts Receivable, after Allowance for Credit Loss, Current, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts receivable, net of allowance for doubtful accounts of $76 and $0 as of December 31, 2021 and 2020, respectively</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseRenewalTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Option to extend lease, term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseRenewalTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Renewal Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Research and development</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group Including Discontinued Operation Research and Development</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disposal group including discontinued operation research and development.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Research and development</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities, Current, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable and accrued expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromStockPlans_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Stock Plans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromStockPlans_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from ESPP purchases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group, Including Discontinued Operation, Liabilities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments and contingencies (Note 14)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_StockIssuedDuringPeriodSharesRelatedToExerciseOfOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exercised during the year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_StockIssuedDuringPeriodSharesRelatedToExerciseOfOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period Shares Related To Exercise Of Options</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_StockIssuedDuringPeriodSharesRelatedToExerciseOfOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Stock issued during period shares related to exercise of options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProvisionForDoubtfulAccounts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Receivable, Credit Loss Expense (Reversal)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProvisionForDoubtfulAccounts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total leased liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating Lease, Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandTwentyOneWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">January two thousand twenty one warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandTwentyOneWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">January Two Thousand Twenty One Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandTwentyOneWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">January 2021 Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AuditorFirmId_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Auditor Firm ID</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseContingentLiabilityWrite-OffsAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Nondeductible Expense, Contingent Liability Write-offs, Amount</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseContingentLiabilityWrite-OffsAmount_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Contingent Liability Write-offs</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net loss</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccountsReceivablesAndOtherReceivablesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accounts receivables and other receivables.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandTwentyOnePlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">January two thousand twenty one placement agent warrants.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock-based Compensation Cancellations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CommonStockAndPreFundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common stock and Pre-funded warrants.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reconciles The U.S. Federal Statutory Income Tax Amount And Rate</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AugustTwoThousandAndTwentyTwoOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">August two thousand and twenty two offering.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExaminationYearUnderExamination_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Examination, Year under Examination</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transactions Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party Transactions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock-based compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">APIC, Share-Based Payment Arrangement, Increase for Cost Recognition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">APIC, Share-based Payment Arrangement, Increase for Cost Recognition, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateTerms_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt instrument interest rate terms</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateTerms_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Interest Rate Terms</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ArchipelagoVenturesHawaiiLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Archipelago Ventures Hawaii, LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ArchipelagoVenturesHawaiiLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Archipelago Ventures Hawaii L L C [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ArchipelagoVenturesHawaiiLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Archipelago Ventures Hawaii, LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Changes in Valuation Allowances</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityPeriodicPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Periodic Payment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityPeriodicPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">First payment principal and accrued interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandEighteenSecuritiesPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2018 Purchase Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandEighteenSecuritiesPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March two thousand eighteen securities purchase agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandEighteenSecuritiesPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Two Thousand Eighteen Securities Purchase Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseExistenceOfOptionToExtend_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Existence of option to extend</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseExistenceOfOptionToExtend_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Existence of Option to Extend [true false]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccountingPoliciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounting Policies [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccountingPoliciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Policies [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccountingPoliciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accounting policies.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Stockholders' Equity [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_LegacyVenturesHawaiiLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Legacy Ventures Hawaii, LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_LegacyVenturesHawaiiLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Legacy Ventures Hawaii L L C [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_LegacyVenturesHawaiiLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Legacy Ventures Hawaii, LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital contributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRightsRemainingExercisable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Remaining warrants exercisable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRightsRemainingExercisable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights Remaining Exercisable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRightsRemainingExercisable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class of warrant or right number of securities called by warrants or rights remaining exercisable.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashEquivalentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Equivalents [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashEquivalentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Equivalents [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UseOfEstimates_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Use of Estimates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UseOfEstimates_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Use of Estimates, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEquityMethodInvestmentsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Equity Method Investments [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEquityMethodInvestmentsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investment [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fixed assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseholdImprovementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Leasehold improvements [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseholdImprovementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Leasehold Improvements [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Embedded Derivative, Fair Value of Embedded Derivative Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of embedded derivative note receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine2_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line Two</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine2_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line Two</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IncreaseDecreaseInOperatingLeasePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IncreaseDecreaseInOperatingLeasePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease In Operating Lease Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IncreaseDecreaseInOperatingLeasePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Increase Decrease in Operating Lease Payments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_US_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">United States</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_US_lbl" xlink:role="http://www.xbrl.org/2003/role/label">UNITED STATES</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsNoteDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants and Rights Note Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-Controlling Interest [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ShelfRegistrationStatementExpirationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Shelf registration statement expiration period.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ShelfRegistrationStatementExpirationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shelf Registration Statement Expiration Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ShelfRegistrationStatementExpirationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shelf registration statement expiration period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument, Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncash Investing and Financing Items [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">NONCASH TRANSACTIONS:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLeaseAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total leased assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLeaseAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLeaseAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Operating lease assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Date of merger and reorganization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Effective Date of Acquisition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryCurrentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Inventory, Current [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Unrecognized Tax Benefits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OrganizationPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Organization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OrganizationPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization Policy Policy [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OrganizationPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Organization policy.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingCodmIndividualTitleAndPositionOrGroupOrCommitteeNameExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basic net loss per share attributable to common stockholders from discontinued operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingOtherItemAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other segment items</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingOtherItemAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, Other Segment Item, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingOtherItemAmount_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Other segment items</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PlanNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Plan Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PlanNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Plan Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SaleOfInterestInJointVentureFixedConsiderationAgreedAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sale of interest in joint venture, fixed consideration agreed amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SaleOfInterestInJointVentureFixedConsiderationAgreedAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale Of Interest In Joint Venture Fixed Consideration Agreed Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SaleOfInterestInJointVentureFixedConsiderationAgreedAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sale of interest in joint venture fixed consideration agreed amount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts receivable and other receivables</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receivable [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Joint venture interest percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investment, Ownership Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_LineOfCreditFacilityAgreementDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of credit facility agreement date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_LineOfCreditFacilityAgreementDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line Of Credit Facility Agreement Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_LineOfCreditFacilityAgreementDate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Line of credit facility agreement date.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfGoodsAndServicesSold_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cost of revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfGoodsAndServicesSold_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cost of Product and Service Sold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfGoodsAndServicesSold_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total cost of revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskMateriallyAffectedOrReasonablyLikelyToMateriallyAffectRegistrantTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Impairment, Long-Lived Asset, Held-for-Use, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Impairment, Long-Lived Asset, Held-for-Use</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Impairment of property and equipment, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Impairment of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Impairment of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CurrentStateAndLocalTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">State</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CurrentStateAndLocalTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Current State and Local Tax Expense (Benefit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CurrentStateAndLocalTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">State</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Description of Business</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Description and Basis of Presentation [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementExpertiseOfManagementResponsibleTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management Expertise of Management Responsible [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NoteReceivableBifurcatedDerivativesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Note Receivable Bifurcated Derivatives [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NoteReceivableBifurcatedDerivativesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Note Receivable Bifurcated Derivatives [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NoteReceivableBifurcatedDerivativesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Note Receivable Bifurcated Derivatives.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ArcadiaBiosciencesIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Arcadia Biosciences, Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ArcadiaBiosciencesIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Arcadia Biosciences, Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AssetPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Purchase Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AssetPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Asset purchase agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxReconciliationOtherAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxReconciliationOtherAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Other Adjustments, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class Of Warrant Or Right [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OptionIndexedToIssuersEquityTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Option Indexed to Issuer's Equity [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CustomerListsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Customer Lists [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CollaborativeArrangementsCopromotionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collaborative Arrangements [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CollaborativeArrangementsCopromotionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangements Copromotion [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CollaborativeArrangementsCopromotionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Collaborative arrangements, copromotion.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdateExtensibleList_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, City or Town</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, City or Town</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EmployeeStockPurchasePlanOfferingPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchase plan offering period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EmployeeStockPurchasePlanOfferingPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee Stock Purchase Plan Offering Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EmployeeStockPurchasePlanOfferingPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Employee stock purchase plan offering period.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationContingentConsiderationLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contingent liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationContingentConsiderationLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Contingent Consideration, Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationContingentConsiderationLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Business Combination, Contingent Consideration, Liability, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesAndLoansReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, after Allowance for Credit Loss, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesAndLoansReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Financing Receivable, after Allowance for Credit Loss, Current, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesAndLoansReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Note receivable - current, net of allowance for credit losses (Note 8)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_September2019PlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">September 2019 Placement Agent Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_September2019PlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">September2019 Placement Agent Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_September2019PlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">September 2019 placement agent warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Reportable Segments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of reportable segment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLossCarryforwardGenerated_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Loss Carryforward Generated</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLossCarryforwardGenerated_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Operating loss carryforward generated.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLossCarryforwardGenerated_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating loss carryforward</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_SecurityExchangeName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Security Exchange Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_SecurityExchangeName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Exchange Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Indefinite-lived Intangible Assets (Excluding Goodwill), Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Indefinite-lived Intangible Assets (Excluding Goodwill), Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Indefinite-Lived Intangible Assets (Excluding Goodwill)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Indefinite-lived intangible assets, Net Carrying Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Indefinite lived intangible assets, Net Carrying Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_FiniteAndIndefiniteLivedIntangibleAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Finite and indefinite lived intangible assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_FiniteAndIndefiniteLivedIntangibleAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite And Indefinite Lived Intangible Assets [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_FiniteAndIndefiniteLivedIntangibleAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Finite And Indefinite Lived Intangible Assets [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ArcadiaWellnessLimitedLiabilityCompanyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Arcadia Wellness Acquisition [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ArcadiaWellnessLimitedLiabilityCompanyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Arcadia Wellness limited liability company.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ArcadiaWellnessLimitedLiabilityCompanyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Arcadia Wellness Limited Liability Company [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ArcadiaWellnessLimitedLiabilityCompanyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Arcadia Wellness [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Other Adjustments, Percent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property and equipment, gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment, Gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Property, Plant and Equipment, Gross, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Property, Plant and Equipment, Gross, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Property, Plant and Equipment, Gross, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CommitmentsAndContingenciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments And Contingencies [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CommitmentsAndContingenciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments And Contingencies [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CommitmentsAndContingenciesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Commitments and contingencies table.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Current Income Tax Expense (Benefit), Continuing Operations [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityIssuanceMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityIssuanceMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Investment Options Liability Issuance Month And Year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityIssuanceMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Preferred investment options liability issuance month and year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Offering Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Offering costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccruedInventory_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Inventory</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccruedInventory_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Inventory</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccruedInventory_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accrued inventory.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Assets Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Intangible Assets, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_HCWainwrightCoLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Wainwright</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_HCWainwrightCoLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">H.C. Wainwright Co., LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_HCWainwrightCoLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">H.C. Wainwright &amp; Co., LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_CounterpartyNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Counterparty Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_CounterpartyNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Counterparty Name [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net loss from continuing operations before income taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net loss from continuing operations before income taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares Subject to Outstanding, Vested and expected to vest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net loss from discontinued operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Concentration Risk Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">OCI, Debt Securities, Available-for-Sale, Transfer from Held-to-Maturity, Gain (Loss), before Adjustment, after Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reclassification adjustment for gains on available-for-sale securities included in net loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedRoyaltiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Royalty fees due to unrelated parties</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedRoyaltiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Royalties, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ContractualAgreementMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contractual agreement month and year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ContractualAgreementMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contractual Agreement Month And Year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ContractualAgreementMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Contractual agreement month and year.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Measurement Input Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Antidilutive Securities, Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities, Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Diluted net loss per share attributable to common stockholders from discontinued operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_TwoThousandFifteenOmnibusEquityIncentivePlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2015 Omnibus Equity Incentive Plan [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_TwoThousandFifteenOmnibusEquityIncentivePlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand Fifteen Omnibus Equity Incentive Plan [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_TwoThousandFifteenOmnibusEquityIncentivePlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two thousand fifteen omnibus equity incentive plan.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_May2020WarrantsPrivatePlacementOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">May 2020 Warrants Private Placement Offering [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_May2020WarrantsPrivatePlacementOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">May 2020 warrants private placement offering.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_May2020WarrantsPrivatePlacementOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">May 2020 Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryNet_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Inventory contributed</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Inventory, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Inventory, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Inventories</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goodwill</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Assets, Goodwill and Intangible Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInDueToRelatedParties_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amounts due to related parties</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInDueToRelatedParties_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Due to Related Parties</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInDueToRelatedParties_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase (Decrease) in Due to Related Parties, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCustomerList_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business combination recognized identifiable assets acquired and liabilities assumed customer list.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCustomerList_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Customer List</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCustomerList_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Customer list</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Paid, Excluding Capitalized Interest, Operating Activity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash paid for interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statistical Measurement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Warrants issued, exercise price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right, Exercise Price of Warrants or Rights</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exercise Price Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total current assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Total stock-based compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Period End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Period End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investments and Joint Ventures [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_TitleOfIndividualAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Title of Individual</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_TitleOfIndividualAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Title and Position [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Hierarchy and NAV</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_IcfrAuditorAttestationFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">ICFR Auditor Attestation Flag</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_IcfrAuditorAttestationFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">ICFR Auditor Attestation Flag</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares Subject to Outstanding, Exercisable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccruedResearchAndDevelopmentCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Research and development</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccruedResearchAndDevelopmentCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Research And Development Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccruedResearchAndDevelopmentCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accrued research and development current.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gain on sale of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Disposition of Property Plant Equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Gain (Loss) on Disposition of Property Plant Equipment, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gain on sale of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average useful life</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Financial Position [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DeferredTaxAssetsSectionOneSevenFourCapitalization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Section 174 Capitalization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DeferredTaxAssetsSectionOneSevenFourCapitalization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Assets Section One Seven Four Capitalization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DeferredTaxAssetsSectionOneSevenFourCapitalization_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred tax assets section one seven four capitalization.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Security, Excluded EPS Calculation [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DebtAndEquitySecuritiesAccumulatedGrossUnrealizedGainBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrealized Gains</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DebtAndEquitySecuritiesAccumulatedGrossUnrealizedGainBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt And Equity Securities Accumulated Gross Unrealized Gain Before Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DebtAndEquitySecuritiesAccumulatedGrossUnrealizedGainBeforeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt and equity securities accumulated gross unrealized gain before tax.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CustomerEMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Customer E.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CustomerEMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Customer E [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CustomerEMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Customer E</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreeOptionsAndMarchTwoThousandTwentyThreePlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2023 Options and March 2023 Placement Agent Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreeOptionsAndMarchTwoThousandTwentyThreePlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March two thousand twenty three options and march two thousand twenty three placement agent options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreeOptionsAndMarchTwoThousandTwentyThreePlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Two Thousand Twenty Three Options And March Two Thousand Twenty Three Placement Agent Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CurrentIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Total current tax (expense)</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CurrentIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total current tax expense (benefit)</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ImpairmentOfPromissoryNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Impairment of promissory notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ImpairmentOfPromissoryNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Impairment of promissory notes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementStrategyAndGovernanceLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management, Strategy, and Governance [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_InventoryFinishedGoodsCurrentAndNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Finished goods</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_InventoryFinishedGoodsCurrentAndNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Inventory Finished Goods Current And Non Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_InventoryFinishedGoodsCurrentAndNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Inventory finished goods current and non-current.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BodyCareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Body Care [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BodyCareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Body Care [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BodyCareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Body Care</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OptionIndexedToIssuersEquityLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Option Indexed to Issuer's Equity [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instruments [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFormulations_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business combination recognized identifiable assets acquired and liabilities assumed formulations.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFormulations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Formulations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFormulations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Formulations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLeaseTermExpirationMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease term, expiration</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLeaseTermExpirationMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease Term Expiration Month and Year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLeaseTermExpirationMonthAndYear_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Operating lease term expiration month and year.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Investment Options Liability Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Preferred investment options liability term.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Groups, Including Discontinued Operations [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Indefinite-Lived Intangible Assets, Major Class Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Finite-Lived Intangible Assets, Gross, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Assets, Gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortized intangible assets, Gross Carrying Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfTechnologyDevelopmentProgramsCeased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of development programs ceased</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfTechnologyDevelopmentProgramsCeased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Technology Development Programs Ceased</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfTechnologyDevelopmentProgramsCeased_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of technology development programs ceased.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Investment Options Liability Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Preferred investment options liability outstanding.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisclosureOfCompensationRelatedCostsShareBasedPaymentsAndWarrantsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disclosure Of Compensation Related Costs Share Based Payments And Warrants [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisclosureOfCompensationRelatedCostsShareBasedPaymentsAndWarrantsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure of compensation related costs share based payments and warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationInventoryNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group, Including Discontinued Operation, Inventory, Noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationInventoryNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Inventories, net - noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Weighted Average Number of Shares Outstanding, Diluted, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average shares - Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity File Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity File Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ChesterfieldAndChatsworthMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Chesterfield, MO And Chatsworth, CA [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ChesterfieldAndChatsworthMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Chesterfield and Chatsworth.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ChesterfieldAndChatsworthMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Chesterfield And Chatsworth [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrealized gains on available-for-sale securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate202307Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update 2023-07 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CoverAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cover</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CoverAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cover [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DeferredTaxAssetIncomeFromPartnerships_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred tax asset income from partnerships.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DeferredTaxAssetIncomeFromPartnerships_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Asset Income From Partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DeferredTaxAssetIncomeFromPartnerships_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income from partnerships</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_November2020TransactionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">November 2020 Transaction.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_November2020TransactionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">November2020 Transaction [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_November2020TransactionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">November 2020 Bioceres Transaction [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Measurement Input Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable and accrued expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accounts Payable and Accrued Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase (Decrease) in Accounts Payable and Accrued Liabilities, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DecemberTwoThousandTwentyWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">December 2020 Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DecemberTwoThousandTwentyWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">December Two Thousand Twenty Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DecemberTwoThousandTwentyWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">December 2020 warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_UnregisteredPreferredInvestmentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unregistered Preferred Investment Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_UnregisteredPreferredInvestmentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Unregistered preferred investment options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_UnregisteredPreferredInvestmentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">New Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid expenses and other current assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expense and Other Assets, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IncomeLossFromContinuingOperationsAndDiscontinuedOperationsBeforeIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Income (loss) from continuing operations and discontinued operations before income taxes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IncomeLossFromContinuingOperationsAndDiscontinuedOperationsBeforeIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Continuing Operations and Discontinued Operations before Income Taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IncomeLossFromContinuingOperationsAndDiscontinuedOperationsBeforeIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net loss from continuing operations before income taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTypeCategorizationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTypeCategorizationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SalesRevenueNetMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Revenue [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SalesRevenueNetMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue Benchmark [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfOperatingSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of operating segment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfOperatingSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Operating Segments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sale of Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segment Reporting</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantModificationIncludedInValuationLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Warrant modification included in valuation loss.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantModificationIncludedInValuationLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrant Modification Included In Valuation Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantModificationIncludedInValuationLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrant and option modifications included in Valuation loss on March 2023 PIPE</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantModificationIncludedInValuationLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Warrant modification included in valuation loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeriesAAndBPreferredInvestmentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Series A and B preferred investment options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeriesAAndBPreferredInvestmentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series A and B Preferred Investment Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeriesAAndBPreferredInvestmentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Series A and B Preferred Investment Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Pro Forma Information, Pro Forma Income (Loss), after Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income (loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CustomerConcentrationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Customer Concentration Policy [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CustomerConcentrationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Customer concentration.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CustomerConcentrationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Customer concentration</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Finite-Lived Intangible Assets, Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Finite-Lived Intangible Assets, Net, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Finite-Lived Intangible Assets, Net, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Assets, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortized intangible assets, Net Carrying Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of placement agent warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustments to Additional Paid in Capital, Warrant Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Gain on sale of Verdeca</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Gain on sale of membership interests in Verdeca</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investment, Realized Gain (Loss) on Disposal</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Equity Method Investment, Realized Gain (Loss) on Disposal, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gain on sale of Verdeca</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gain on sale of Verdeca</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted Average Exercise Price Per Share, Vested and expected to vest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_June2019PlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">June 2019 Placement Agent Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_June2019PlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">June2019 Placement Agent Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_June2019PlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">June 2019 placement agent warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property and equipment, estimated useful lives</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment, Useful Life</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Maturities of Operating Lease Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RightToCarryforwardTaxLossesPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Right to carryforward tax losses, period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RightToCarryforwardTaxLossesPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Right To Carryforward Tax Losses Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RightToCarryforwardTaxLossesPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Right to Carryforward Tax Losses, Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfAssets1_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gain on disposal of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfAssets1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Disposition of Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfAssets1_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Gain (Loss) on Disposition of Assets, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Options vesting period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group, Including Discontinued Operation, Consideration</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sale of net consideration</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Domestic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Continuing Operations before Income Taxes, Domestic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Depreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Depreciation, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Depreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Depreciation expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Depreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Depreciation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Depreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Depreciation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Recognized any interest and penalties related to uncertain tax positions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ArcadiaBiosciencesIncorporationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Arcadia Biosciences, Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ArcadiaBiosciencesIncorporationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Arcadia Biosciences Incorporation [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ArcadiaBiosciencesIncorporationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Arcadia Biosciences incorporation.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseTermOfContract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating leases, term of contract</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseTermOfContract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Term of Contract</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Common Stock, Shares, Outstanding, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Common Stock, Shares, Outstanding, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Current - Operating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease liability - current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Liability, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementProcessesIntegratedFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management Processes Integrated [Flag]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Transition Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Transition Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsLiabilitiesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net deferred tax assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsLiabilitiesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Assets, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Short-Term Investments, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Short-term investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfLeaseAmendments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of lease amendments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfLeaseAmendments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Lease Amendments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfLeaseAmendments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of lease amendments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property and equipment, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLossCarryforwardsLimitationsOnUse_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating loss carryforwards limitations on use</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLossCarryforwardsLimitationsOnUse_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Loss Carryforwards, Limitations on Use</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Research and development</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Research and Development Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Research and Development Expense, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetImpairmentCharges_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Impairment charges</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetImpairmentCharges_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Impairment charges</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetImpairmentCharges_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Impairment Charges</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetImpairmentCharges_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Write-down of intangible assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeasesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Leases [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeasesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Leases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandEighteenWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">June 2018 Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandEighteenWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">June Two Thousand Eighteen Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandEighteenWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">June two thousand eighteen warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RestrictedPeriodOnSaleOrTransferOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted period on sale or transfer of common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RestrictedPeriodOnSaleOrTransferOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Period On Sale Or Transfer Of Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RestrictedPeriodOnSaleOrTransferOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Restricted period on sale or transfer of common stock.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Income Tax Expense Comprised of Current State Taxes and Foreign Taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EstimatedFairValueOptionsExceededGrossProceeds_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Estimated fair value options exceeded gross proceeds.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EstimatedFairValueOptionsExceededGrossProceeds_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Estimated Fair Value Options Exceeded Gross Proceeds</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EstimatedFairValueOptionsExceededGrossProceeds_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Estimated fair value, loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_TechnologyRoyaltyRevenueReceivableOnTraitFeesFromSaleOfInterestInJointVenture_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Technology royalty revenue receivable on trait fees, from sale of interest in joint venture</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_TechnologyRoyaltyRevenueReceivableOnTraitFeesFromSaleOfInterestInJointVenture_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Technology Royalty Revenue Receivable On Trait Fees From Sale Of Interest In Joint Venture</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_TechnologyRoyaltyRevenueReceivableOnTraitFeesFromSaleOfInterestInJointVenture_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Technology royalty revenue receivable on trait fees from sale of interest in joint venture.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Cash Flows [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CurrentFederalTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Federal</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CurrentFederalTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Current Federal Tax Expense (Benefit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Activity Under Stock Incentive Plans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Option, Activity [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Fair Value Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_AR_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Argentina</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_AR_lbl" xlink:role="http://www.xbrl.org/2003/role/label">ARGENTINA</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Financing</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts and Financing Receivables [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedSalariesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued salaries</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedSalariesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Salaries</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Assets [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Loss per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Discontinued Operations and Disposal Groups [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputExpectedDividendRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expected Dividend Yield [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputExpectedDividendRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input, Expected Dividend Rate [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementProcessesIntegratedTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management Processes Integrated [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net loss attributable to common stockholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net loss attributable to common stockholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Aggregate Intrinsic Value, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Aggregate Intrinsic Value, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate Intrinsic Value, Outstanding Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_IN_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">India</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_IN_lbl" xlink:role="http://www.xbrl.org/2003/role/label">INDIA</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryWriteDown_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Write-down of inventories</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryWriteDown_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Inventories written down</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryWriteDown_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Write-down of inventory and prepaid production costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInInventories_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Inventories</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInInventories_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Inventories</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInInventories_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase (Decrease) in Inventories, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Promissory Note [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Promissory note.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Promissory Notes [Member[</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Inventory [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WriteDownOfNonControllingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Write Down Of Non Controlling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WriteDownOfNonControllingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Write down of non controlling interest.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WriteDownOfNonControllingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Write-down of non-controlling interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingChangesAndErrorCorrectionsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Changes and Error Corrections [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsOutstandingTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsOutstandingTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expected term (in years)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsOutstandingTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants and Rights Outstanding, Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PercentageOfRoyaltyPaymentsOnNetRevenues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of royalty payments on net revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PercentageOfRoyaltyPaymentsOnNetRevenues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Royalty Payments On Net Revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PercentageOfRoyaltyPaymentsOnNetRevenues_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of royalty payments on net revenues.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expected dividend yield</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Intangible assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Intangible assets, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Assets, Net (Excluding Goodwill)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Intangible Assets, Net (Excluding Goodwill), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeptemberTwoThousandNineteenWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">September 2019 Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeptemberTwoThousandNineteenWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">September Two Thousand Nineteen Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeptemberTwoThousandNineteenWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">September 2019 warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeasePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeasePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ExchangeAgreementTerminationDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Exchange Agreement Termination Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ExchangeAgreementTerminationDate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Exchange agreement termination date.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ExchangeAgreementTerminationDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exchange agreement termination date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreeOptionsSeriesBMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March two thousand twenty three options series B.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreeOptionsSeriesBMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Two Thousand Twenty Three Options Series B [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreeOptionsSeriesBMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2023 Options - Series B [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Risk-free interest rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConstructionInProgressMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Construction in Progress [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConstructionInProgressMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Construction in Progress [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Prepaid expenses and other current assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Prepaid Expense and Other Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Increase (Decrease) in Prepaid Expense and Other Assets, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantsExpirationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants expiration period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantsExpirationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants Expiration Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantsExpirationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Warrants expiration period.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantsAndOptionsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants and Options</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantsAndOptionsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants And Options Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantsAndOptionsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Warrants and options disclosure.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Fiscal Year Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Year Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNoteCurrentAndNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Promissory note, current and non current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNoteCurrentAndNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Promissory Note, Current And Non Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNoteCurrentAndNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Promissory note, current and non current.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskBenchmarkDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Concentration Risk Benchmark</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskBenchmarkDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk Benchmark [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in fair value and other adjustments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease), Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfOperatingLeaseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Leases</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfOperatingLeaseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Operating Lease Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfOperatingLeaseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of operating lease.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">CASH FLOWS FROM INVESTING ACTIVITIES:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Investing activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CompensationAndRetirementDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retirement Benefits [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DebtAndEquitySecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Estimated Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DebtAndEquitySecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt And Equity Securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DebtAndEquitySecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt and equity securities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DebtAndEquitySecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Fair value of common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfIndividualsAppointed_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of individuals appointed</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfIndividualsAppointed_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Individuals Appointed</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfIndividualsAppointed_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of individuals appointed.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RestrictedCashMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted Cash [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RestrictedCashMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Cash [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RestrictedCashMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Restricted cash.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Components of Loss Before Income Taxes</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OtherAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other Adjustments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OtherAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Adjustments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OtherAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Other adjustments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OtherAdjustments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Other Adjustments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Research and Development [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">R&amp;D Expenses [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Research and Development Expense [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProceedsFromSaleOfEquityMethodInvestmentsInAccountsAndOtherReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from sale of Verdeca in accounts receivable and other receivables</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProceedsFromSaleOfEquityMethodInvestmentsInAccountsAndOtherReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds From Sale Of Equity Method Investments In Accounts And Other Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProceedsFromSaleOfEquityMethodInvestmentsInAccountsAndOtherReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds from sale of equity method investments in accounts and other receivable.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProceedsFromSaleOfEquityMethodInvestmentsInAccountsAndOtherReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Payment received on accounts and other receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_Write-DownOfNon-ControllingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Write-down of Non-controlling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_Write-DownOfNon-ControllingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Write-down of non-controlling interest.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_Write-DownOfNon-ControllingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Write-down of non-controlling interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employer matching contribution, percent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Defined Contribution Plan, Employer Matching Contribution, Percent of Match</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Other noncurrent assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Other Noncurrent Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_ES_lbl" xlink:role="http://www.xbrl.org/2003/role/label">SPAIN</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_ES_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Spain</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfBusiness_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Loss on sale of Arcadia Spain</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Disposition of Business</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Loss on sale of brand</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SummaryOfAmortizedCostAndFairValueOfInvestmentSecuritiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Amortized Cost and Fair Value of Investment Securities Portfolio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SummaryOfAmortizedCostAndFairValueOfInvestmentSecuritiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary Of Amortized Cost And Fair Value Of Investment Securities Table [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SummaryOfAmortizedCostAndFairValueOfInvestmentSecuritiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Summary of amortized cost and fair value of investment securities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFederalIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Federal</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredFederalIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Federal Income Tax Expense (Benefit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_March2020ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2020 Service and Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_March2020ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March2020 Service And Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_March2020ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March 2020 service and performance warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PercentageOfSharesExercisedInTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Shares Exercised In Transaction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PercentageOfSharesExercisedInTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of shares exercised in transaction.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PercentageOfSharesExercisedInTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of shares exercised</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfSharesIssuable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Shares Issuable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfSharesIssuable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of shares issuable.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfSharesIssuable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of parent shares issuable in connection with the notice</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SaleOfInterestInJointVentureDescriptionOfTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sale of interest in joint venture, description of transaction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SaleOfInterestInJointVentureDescriptionOfTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale Of Interest In Joint Venture Description Of Transaction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SaleOfInterestInJointVentureDescriptionOfTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sale of interest in joint venture description of transaction.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroup_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets held for sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroup_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset, Held-for-Sale, Not Part of Disposal Group</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroup_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Assets Held-for-sale, Not Part of Disposal Group, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate202006Member_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Accounting Standards Update 2020-06 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate202006Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">ASU 2020-06 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate202006Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update 2020-06 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_CA_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Canada</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_CA_lbl" xlink:role="http://www.xbrl.org/2003/role/label">CANADA</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CustomerBMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Customer B.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CustomerBMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Customer B [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CustomerBMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Customer B</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputSharePriceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock Price [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputSharePriceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input, Share Price [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockConsiderationReceivedOnTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock, Consideration Received on Transaction</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockConsiderationReceivedOnTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross proceeds on sale</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group, Including Discontinued Operation, Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt instrument outstanding amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Line of Credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Long-term Line of Credit, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLossCarryforwardDeferredTaxAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Operating loss carryforward deferred Tax asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLossCarryforwardDeferredTaxAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">NOL deferred Tax asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionProFormaInformationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Pro Forma Information [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionProFormaInformationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Unaudited Pro-forma Condensed Consolidated Results of Operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt Instrument</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrecognized compensation cost related to unvested stock-based compensation grants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Assets at Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AugustTwoThousandTwentyTwoPreFundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">August 2022 Pre-Funded Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AugustTwoThousandTwentyTwoPreFundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">August Two Thousand Twenty Two Pre Funded Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AugustTwoThousandTwentyTwoPreFundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">August two thousand twenty two pre funded warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsidiarySaleOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sale of Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsidiarySaleOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskPercentage1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Concentration risk percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskPercentage1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OfferingClosingPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Offering closing period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OfferingClosingPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offering Closing Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OfferingClosingPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Offering closing period.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_Rule10B51ArrModifiedFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Rule 10b5-1 Arr Modified Flag</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_Rule10B51ArrModifiedFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Rule 10b5-1 arr modified flag.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consolidated Joint Venture</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investments and Joint Ventures Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingSubleaseOptionToExtend_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sublease, description of option to extend</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingSubleaseOptionToExtend_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Sublease, Option to Extend</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntellectualPropertyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intellectual Property [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AugustTwoThousandTwentyTwoOptionsAndAugustTwoThousandTwentyTwoPlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">August 2022 options and August 2022 placement agent options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AugustTwoThousandTwentyTwoOptionsAndAugustTwoThousandTwentyTwoPlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">August 2022 Options &amp; August 2022 Placement Agent Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DeferredTaxAssetsAccruedPayrollAndBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Assets Accrued Payroll And Benefits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DeferredTaxAssetsAccruedPayrollAndBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred tax assets accrued payroll and benefits.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Title of 12(b) Security</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Title of 12(b) Security</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxLiabilitiesNetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred tax liabilities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxLiabilitiesNetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Liabilities, Net [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeptemberTwoThousandNineteenWarrantsPrivatePlacementOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">September two thousand nineteen warrants private placement offering.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeptemberTwoThousandNineteenWarrantsPrivatePlacementOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">September Two Thousand Nineteen Warrants Private Placement Offering [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeptemberTwoThousandNineteenWarrantsPrivatePlacementOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">September 2019 Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted-Average Exercise Price Per Share, Options forfeited</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment, after Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in unrealized gains on available-for-sale securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Change in unrealized gains on available-for-sale securities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MoneyMarketFundsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Money Market Funds [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MoneyMarketFundsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Money Market Funds [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OptionsExpirationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Options expiration period.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OptionsExpirationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Options Expiration Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OptionsExpirationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Options expiration period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Taxes</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRightsExercisable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights Exercisable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRightsExercisable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class of warrant or right number of securities called by warrants or rights exercisable.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfOtherInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from sale of investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfOtherInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Sale of Other Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Collaborative Arrangements And Noncollaborative Arrangement Transactions [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class Of Warrant Or Right [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_February32020ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">February 3, 2020 Service and Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_February32020ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">February32020 Service And Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_February32020ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">February 3, 2020 service and performance warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_TransactionClosingDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transaction closing date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_TransactionClosingDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Transaction Closing Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_TransactionClosingDate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Transaction closing date.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Other noncurrent liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other noncurrent liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Liabilities, Noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Liabilities, Noncurrent, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccountingPoliciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounting Policies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccountingPoliciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Policies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccountingPoliciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accounting policies.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IncomeTaxExaminationYearSubjectUnderExamination_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tax years subject to examination to extent of NOLs being carried forward</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IncomeTaxExaminationYearSubjectUnderExamination_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Examination Year Subject Under Examination</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IncomeTaxExaminationYearSubjectUnderExamination_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Income tax examination year subject under examination.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Changes in operating assets and liabilities:</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Weighted-Average Exercise Price Per Share, Outstanding Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Weighted Average Exercise Price Per Share, Outstanding Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_TwoThousandSixStockIncentivePlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2006 Stock Incentive Plan [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_TwoThousandSixStockIncentivePlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Two thousand six stock incentive plan.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Disclosure [Abstract]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Recurring and Nonrecurring [Table]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OutsideServices_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Outside services.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trading Symbol</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trading Symbol</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property and Equipment, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Related Party Transactions By Related Party [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreePrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March two thousand twenty three private placement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreePrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Two Thousand Twenty Three Private Placement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreePrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2023 Private Placement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLeaseAssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLeaseAssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease Assets [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLeaseAssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Operating lease assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CommonStockWarrantAndOptionLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock warrant and option liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CommonStockWarrantAndOptionLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock Warrant and Option Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CommonStockWarrantAndOptionLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common stock warrant and option liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantsAndRightsNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantsAndRightsNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants And Rights Note Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantsAndRightsNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Warrants and rights note disclosure.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeRelatedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payroll and benefits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeRelatedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee-related Liabilities, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeRelatedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Employee-related Liabilities, Current, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">CASH FLOWS FROM FINANCING ACTIVITIES:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Expected term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expected term (years)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts Payable and Accrued Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable and Accrued Liabilities Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Equity Method Investments [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Equity Method Investments [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total current operating lease payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreeOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2023 Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreeOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March two thousand twenty three options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreeOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Two Thousand Twenty Three Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate201613Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounting Standards Update 2016-13 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate201613Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update 2016-13 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DefinedBenefitPlanContributionVestingPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Defined benefit plan employee vested minimum period, years</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DefinedBenefitPlanContributionVestingPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Defined Benefit Plan Contribution Vesting Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DefinedBenefitPlanContributionVestingPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Defined benefit plan contribution vesting period.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement Inputs and Valuation Techniques [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ContingentLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contingent Liabilities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ContingentLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contingent Liabilities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ContingentLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Contingent liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage in payroll deductions to acquire shares of common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Employee Subscription Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RegistrationPaymentArrangementTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Registration Payment Arrangement, Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RegistrationPaymentArrangementTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Registration statement expiration term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Components</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Components [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityOutstandingMeasurementInput_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred investment options liability, measurement input</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityOutstandingMeasurementInput_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Investment Options Liability Outstanding Measurement Input</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityOutstandingMeasurementInput_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Preferred investment options liability outstanding measurement input.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of prepayment shares issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Shares Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of shares issued.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Component</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Component [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_InvestmentsAndFairValueInstrumentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments And Fair Value Instruments [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_InvestmentsAndFairValueInstrumentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Investments and fair value instruments.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByAssetClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset Class</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByAssetClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Class [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLossCarryforwardsExpectedToBeUnavailableDueToAnOwnershipChange_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating loss carryforward expected to be unavailable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLossCarryforwardsExpectedToBeUnavailableDueToAnOwnershipChange_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Loss Carryforwards Expected To Be Unavailable Due To An Ownership Change</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLossCarryforwardsExpectedToBeUnavailableDueToAnOwnershipChange_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Operating loss carryforwards, expected to be unavailable due to an ownership change.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business combination recognized identifiable assets acquired and liabilities assumed deposits.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deposits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deposits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DebtAndEquitySecuritiesAmortizedCostBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Amortized Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DebtAndEquitySecuritiesAmortizedCostBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt And Equity Securities Amortized Cost Basis</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DebtAndEquitySecuritiesAmortizedCostBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt and equity securities amortized cost basis.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AdditionalAccountsReceivableProceedsReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Additional accounts receivable proceeds received.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AdditionalAccountsReceivableProceedsReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Accounts Receivable Proceeds Received</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AdditionalAccountsReceivableProceedsReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional proceeds received</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill and Intangible Assets Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Investments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Investments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Investments_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Investments, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Allocation Purchase Price of Assets Acquired at Fair Value at Acquisition Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandAndTwentyThreePIPEMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March two thousand and twenty three P I P E.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandAndTwentyThreePIPEMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Two Thousand And Twenty Three P I P E [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandAndTwentyThreePIPEMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2023 PIPE [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentAnnualReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Annual Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentAnnualReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Annual Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business Acquisition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_May2020WarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">May 2020 Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_May2020WarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">May2020 Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_May2020WarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">May 2020 warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ClassOfWarrantOrRightExercisableTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrant, exercisable term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ClassOfWarrantOrRightExercisableTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class Of Warrant Or Right Exercisable Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ClassOfWarrantOrRightExercisableTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class of warrant or right exercisable term.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MachineryAndEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Machinery and equipment [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Issuance of common stock pursuant to employee stock purchase plan</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Issuance of shares related to employee stock purchase plan, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MajorCustomersAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Customer</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MajorCustomersAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Customer [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PaymentsForTerminationFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Early termination fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PaymentsForTerminationFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for Termination Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PaymentsForTerminationFees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Payments for termination fees.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_GoodwheatMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">GoodWheat [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_GoodwheatMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">GoodWheat [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_GoodwheatMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">GoodWheat [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Options exercisable period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Disposition of Intangible Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Gain on sale of collaborative arrangements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gain on sale of intangible assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gain on sale of collaborative arrangements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Gain from sale of patent portfolio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersOperationsBasicAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Available to Common Stockholders, Basic, Operations [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersOperationsBasicAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net loss per share attributable to common stockholders:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfAdditionalPrepaymentSharesIssuable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of additional prepayment shares issuable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfAdditionalPrepaymentSharesIssuable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of additional prepayment shares issuable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsAndOtherReceivablesNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Remaining accounts receivable and other receivables</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsAndOtherReceivablesNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts receivable balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsAndOtherReceivablesNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts receivable and other receivables, net of allowance for credit loss of $559 and $0 as of December 31, 2025 and 2024, respectively</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investment, Other-than-Temporary Impairment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Impairment of equity method investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maximum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maximum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Statistical Measurement</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted-Average Exercise Price Per Share, Options exercised</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortized intangible assets, Accumulated Amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Assets, Accumulated Amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Value, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Common Stock, Value, Issued, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Common Stock, Value, Issued, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Common Stock, Value, Issued, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, $0.001 par value -150,000,000 shares authorized as of December 31, 2025 and December 31, 2024; 1,373,120 and 1,364,940 shares issued and outstanding as of December 31, 2025 and December 31, 2024, respectively.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total stockholders' equity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Stockholders Equity, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Stockholders Equity, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RoyaltyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Royalty</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RoyaltyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Royalty [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantsOutstandingIntrinsicValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate Intrinsic Value, Options Granted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantsOutstandingIntrinsicValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Based Compensation Arrangement By Share Based Payment Award Grants Outstanding Intrinsic Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantsOutstandingIntrinsicValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Share based compensation arrangement by share based payment award grants outstanding intrinsic value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Continuing Operations, Per Diluted Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Diluted net loss per share attributable to common stockholders from continuing operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net operating loss carryforwards</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Assets, Operating Loss Carryforwards</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Deferred Tax Assets, Operating Loss Carryforwards, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">State and Local Income Taxes, Net of Federal Income Tax Effect</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Future Amortization of Intellectual Property and Customer Lists</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityPublicFloat_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Public Float</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityPublicFloat_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Public Float</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandEighteenWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2018 Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandEighteenWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Two Thousand Eighteen Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandEighteenWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March 2018 warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expected volatility</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostsAndExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Costs and Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostsAndExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total operating expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostsAndExpenses_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Total operating expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Assets by Major Class [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesFinancingTransactionTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Financing Transaction [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lender Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lender Name [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantsExpirationDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants expiration date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantsExpirationDate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Warrants expiration date.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantsExpirationDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants Expiration Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party Transaction [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2015 Employee Stock Purchase Plan [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsNotesAndLoansReceivableLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts, Notes, Loans and Financing Receivable [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Business Acquisitions By Acquisition [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProceedsFromSaleOfPropertyPlantAndEquipmentContinuingOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from sale of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProceedsFromSaleOfPropertyPlantAndEquipmentContinuingOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Sale of Property Plant and Equipment, Continuing Operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProceedsFromSaleOfPropertyPlantAndEquipmentContinuingOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds from sale of property plant and equipment, continuing operations.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Entity Registrant Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Registrant Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Registrant Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityVoluntaryFilers_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Voluntary Filers</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityVoluntaryFilers_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Voluntary Filers</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CustomerConcentrationRiskMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Customer Concentration Risk [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CustomerConcentrationRiskMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Customer Concentration Risk [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee Disclosure [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Table]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNonoperatingIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other income, net</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">State</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred State and Local Income Tax Expense (Benefit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total accounts payable and accrued expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable and accrued expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable and Accrued Liabilities, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group, Including Discontinued Operation, Depreciation and Amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Depreciation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccruedAuditAndTaxFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Audit and tax fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccruedAuditAndTaxFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Audit And Tax Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AccruedAuditAndTaxFees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Accrued audit and tax fees.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementPositionsOrCommitteesResponsibleFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management Positions or Committees Responsible [Flag]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Income tax expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Total tax (expense)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total income tax expense (benefit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Expense (Benefit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Income tax expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Effective Tax Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance of Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate gross proceeds</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AdditionalCashReceivableFromSaleOfInterestInJointVenture_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional cash receivable from sale of interest in joint venture</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AdditionalCashReceivableFromSaleOfInterestInJointVenture_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Cash Receivable From Sale Of Interest In Joint Venture</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AdditionalCashReceivableFromSaleOfInterestInJointVenture_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Additional cash receivable from sale of interest in joint venture.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EstimatedFairValueOfLiabilityOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Estimated fair value of liability options</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EstimatedFairValueOfLiabilityOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Estimated fair value of liability options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EstimatedFairValueOfLiabilityOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Estimated Fair Value of Liability Options</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeptemberTwoThousandNineteenPlacementAgentWarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">September 2019 Placement Agent Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeptemberTwoThousandNineteenPlacementAgentWarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">September Two Thousand Nineteen Placement Agent Warrant [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeptemberTwoThousandNineteenPlacementAgentWarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">September Two Thousand Nineteen Placement Agent Warrant.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Preferred Investment Option Liabilities Measured and Recorded on Recurring Basis using Black-Scholes Model</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfIncomeTaxTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Income Tax [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfIncomeTaxTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Income Tax [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfIncomeTaxTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of income tax.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLossCarryforwardUnutilized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Loss Carryforward Unutilized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLossCarryforwardUnutilized_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Operating loss carryforward unutilized.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OperatingLossCarryforwardUnutilized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating loss carryforward utilized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Common Stock, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Common Stock, Shares Outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskCreditRisk_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk, Credit Risk, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskCreditRisk_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Concentration of risk</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByLiabilityClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liability Class</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByLiabilityClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liability Class [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupClassificationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group Classification [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_LiquidityCapitalResourcesAndGoingConcernPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liquidity, Capital Resources, and Going Concern</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_LiquidityCapitalResourcesAndGoingConcernPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liquidity Capital Resources And Going Concern Policy Policy [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_LiquidityCapitalResourcesAndGoingConcernPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Liquidity capital resources and going concern.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_StockIssuedDuringPeriodSharesRelatedToExerciseOfWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Stock issued during period shares related to exercise of warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_StockIssuedDuringPeriodSharesRelatedToExerciseOfWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Issuance of shares related to the exercise of warrants, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_StockIssuedDuringPeriodSharesRelatedToExerciseOfWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Exercised during the year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_StockIssuedDuringPeriodSharesRelatedToExerciseOfWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of shares related to Pre-Funded Warrants exercise</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Purchases of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Property, Plant, and Equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Payments to Acquire Property, Plant, and Equipment, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Inventory</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Inventory, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Property Plant And Equipment [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BasisOfPresentationAndPrinciplesOfConsolidationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basis of Presentation and Principles of Consolidation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BasisOfPresentationAndPrinciplesOfConsolidationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Basis Of Presentation And Principles Of Consolidation Policy [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BasisOfPresentationAndPrinciplesOfConsolidationPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Basis of presentation and principles of consolidation policy.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherSellingGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other SG&amp;A</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherSellingGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Selling, General and Administrative Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherSellingGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Other SG&amp;A</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value of Financial Instruments, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of financial instruments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PaycheckProtectionProgramMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Paycheck Protection Program [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PaycheckProtectionProgramMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Paycheck Protection Program [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PaycheckProtectionProgramMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Paycheck protection program.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Decreases for tax positions taken in prior years</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Decreases for tax positions taken in prior years</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityListingParValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Listing, Par Value Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock-based compensation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_July2019ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">July 2019 Service and Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_July2019ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">July2019 Service And Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_July2019ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">July 2019 service and performance warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LegalFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Legal Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LegalFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Legal fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Total deferred tax (expense)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Income Tax Expense (Benefit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total deferred tax expense (benefit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMark-To-MarketAdjustmentsPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Mark-to-Market Adjustments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMark-To-MarketAdjustmentsPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Nondeductible Expense, Mark-to-Market Adjustments, Percent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMark-To-MarketAdjustmentsPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Effective income tax rate reconciliation, nondeductible expense, mark-to-market adjustments, percent.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Selling, General and Administrative [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Selling, General and Administrative Expenses [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpensesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Selling, General and Administrative Expenses [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_February122020ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">February 12, 2020 Service and Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_February122020ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">February122020 Service And Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_February122020ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">February 12, 2020 service and performance warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityInitiationDate1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of credit facility initiation date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityInitiationDate1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Initiation Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of shares, Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, New Issues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Shares of common stock issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCostAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lease, Cost [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCostAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net loss per diluted share attributable to common stockholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net loss per diluted share attributable to common stockholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandEighteenPrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2018 Private Placement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandEighteenPrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Two Thousand Eighteen Private Placement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandEighteenPrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March two thousand eighteen private placement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Segment Reporting Information, by Segment [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Information about Segment Operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Percent [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_TitleOfIndividualWithRelationshipToEntityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Title of Individual</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_TitleOfIndividualWithRelationshipToEntityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Title and Position [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group, Including Discontinued Operation, Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">City Area Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">City Area Code</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RadianceBeautyLicensingAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Radiance Beauty Licensing Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_RadianceBeautyLicensingAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Radiance beauty licensing agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Rent payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for Rent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionsProFormaRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Pro Forma Information, Pro Forma Revenue</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionsProFormaRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AuditorName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Auditor Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt instrument, face amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Face Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net loss from discontinued operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ReducedInExercisePricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reduced in Exercise Price Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ReducedInExercisePricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Reduced in exercise price per share.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ReducedInExercisePricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reduced exercise price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandEighteenPlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">June 2018 Placement Agent Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandEighteenPlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">June Two Thousand Eighteen Placement Agent Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandEighteenPlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">June two thousand eighteen placement agent warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of credit facility maximum borrowing capacity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Maximum Borrowing Capacity</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business Acquisition [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateEarlyAdoption_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in accounting principle, accounting standards update, early adoption [true false]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateEarlyAdoption_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change in Accounting Principle, Accounting Standards Update, Early Adoption [true false]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AmortizationOfNoteReceivableDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortization of note receivable discount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AmortizationOfNoteReceivableDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortization Of Note Receivable Discount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AmortizationOfNoteReceivableDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amortization of note receivable discount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OfficeBuildingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Office Space [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OfficeBuildingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Office Building [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RepurchaseAgreementCounterpartyNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Counterparty Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RepurchaseAgreementCounterpartyNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Counterparty Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeriesBPreferredInvestmentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Series B preferred investment options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeriesBPreferredInvestmentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series B Preferred Investment Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of shares related to employee stock purchase plan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Employee Stock Purchase Plan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Promissory Note [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Promissory Notes [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Promissory notes.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted-average remaining lease term (years)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Weighted Average Remaining Lease Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real Estate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group Name [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_VerdecaLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Verdeca LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_VerdecaLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Verdeca L L C [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_VerdecaLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Verdeca LLC.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net lease cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lease, Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Sale of Accounts Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Credit loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Credit loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents, Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and cash equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DiscountedPromissoryNote_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Discounted promissory note</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DiscountedPromissoryNote_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Discounted Promissory Note</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DiscountedPromissoryNote_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Discounted promissory note.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business combination, equity interest issuable, value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Consideration Transferred, Equity Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Property and equipment, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property and equipment, net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Property, Plant and Equipment, Net, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Property, Plant and Equipment, Net, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandAndTwentyOnePIPEMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">January two thousand and twenty one PIPE.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandAndTwentyOnePIPEMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">January Two Thousand And Twenty One P I P E [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandAndTwentyOnePIPEMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">January 2021 PIPE [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredForeignIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Foreign</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredForeignIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Foreign Income Tax Expense (Benefit)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ImpairmentOfIntangibleAssetsFinitelived_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Impairment of intangible assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ImpairmentOfIntangibleAssetsFinitelived_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Impairment charges</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ImpairmentOfIntangibleAssetsFinitelived_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Impairment of goodwill</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_April2019ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">April 2019 Service and Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_April2019ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">April2019 Service And Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_April2019ServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">April 2019 service and performance warrants.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Cash and cash equivalents - end of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Cash and cash equivalents - beginning of period</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CorporateSecuritiesReceivedSaleOfMembershipInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Corporate Securities Received Sale Of Membership Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CorporateSecuritiesReceivedSaleOfMembershipInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Corporate securities received sale of membership Interest.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpiredOutstandingIntrinsicValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate Intrinsic Value, Options Expired</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpiredOutstandingIntrinsicValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Based Compensation Arrangement By Share Based Payment Award Expired Outstanding Intrinsic Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpiredOutstandingIntrinsicValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Share based compensation arrangement by share based payment award expired outstanding intrinsic value.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt - current</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Debt, Current, Total</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_FiniteAndIndefiniteLivedIntangibleAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Finite and indefinite lived intangible assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_FiniteAndIndefiniteLivedIntangibleAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite And Indefinite Lived Intangible Assets [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_FiniteAndIndefiniteLivedIntangibleAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Finite And Indefinite Lived Intangible Assets [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandNineteenWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">June 2019 Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandNineteenWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">June Two Thousand Nineteen Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandNineteenWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">June 2019 warrants.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Noncash Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Share-based Payment Arrangement, Noncash Expense, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PercentageOfManagementFeePaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Management Fee Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PercentageOfManagementFeePaid_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of management fee paid.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PercentageOfManagementFeePaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of management fee paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputPriceVolatilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Expected Volatility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputPriceVolatilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input, Price Volatility [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfStockIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Offering costs</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loans Insured or Guaranteed by Government Authorities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loans Insured or Guaranteed by Government Authorities [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CommonStockOptionsIssuedToPlacementAgentAndIncludedInOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock options issued to placement agent and included in offering costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CommonStockOptionsIssuedToPlacementAgentAndIncludedInOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock Options Issued to Placement Agent and Included in Offering Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CommonStockOptionsIssuedToPlacementAgentAndIncludedInOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common stock options issued to placement agent and included in offering costs.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted-average discount rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Weighted Average Discount Rate, Percent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Noncurrent - Operating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease liability - noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Liability, Noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfPropertyPlantAndEquipmentTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Property and Equipment, Net</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfPropertyPlantAndEquipmentTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of property plant and equipment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 1 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 1 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PaymentToAquirePromissoryNote_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payment To Aquire Promissory Note</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PaymentToAquirePromissoryNote_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Payment to aquire promissory note.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PaymentToAquirePromissoryNote_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payment to aquire promissory note</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash provided by financing activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdopted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change in Accounting Principle, Accounting Standards Update, Adopted [true false]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdopted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in accounting principle, accounting standards update, early adoption [true false]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AuditorLocation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Auditor Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Investments, Fair Value Disclosure, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments, Fair Value Disclosure</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Short-term investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Warrants Issued to Purchase Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationReturn-To-ProvisionAdjustmentsPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Return-to-Provision Adjustments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationReturn-To-ProvisionAdjustmentsPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Return-to-Provision Adjustments, Percent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationReturn-To-ProvisionAdjustmentsPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Effective income tax rate reconciliation, return-to-provision adjustments, percent.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_FairValueOfAboveFoodIngredientsIncCommonStockReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value of Above Food Ingredients, Inc. Common Stock Received</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_FairValueOfAboveFoodIngredientsIncCommonStockReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair value of Above Food Ingredients, Inc. common stock received.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_FairValueOfAboveFoodIngredientsIncCommonStockReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of Above Food Ingredients, Inc. common stock received</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CommitmentsAndContingenciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments And Contingencies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CommitmentsAndContingenciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments And Contingencies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CommitmentsAndContingenciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Commitments and contingencies line items.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Securities Not Included in Diluted per Share Calculations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CorporateDebtSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Corporate Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CorporateDebtSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Corporate Debt Securities [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxAuthorityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Tax Authority</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxAuthorityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Jurisdiction [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Interactive Data Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Interactive Data Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityMeasuredRemainingTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Remaining term (in years)</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityMeasuredRemainingTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Preferred investment options liability measured remaining term.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfIncomeTaxLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Income Tax [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfIncomeTaxLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Income Tax [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfIncomeTaxLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of income tax.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BusinessAcquisitionNetIncomeLossAttributableToCommonStockholders_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Business acquisition net income loss attributable to common stockholders.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Investment Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Preferred investment options.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IndefiniteLivedIntangibleAssetsAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Indefinite-lived intangible assets, Accumulated Amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IndefiniteLivedIntangibleAssetsAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Indefinite Lived Intangible Assets Accumulated Amortization</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IndefiniteLivedIntangibleAssetsAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Indefinite lived intangible assets accumulated amortization.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FurnitureAndFixturesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Furniture and fixtures [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FurnitureAndFixturesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Furniture and Fixtures [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfLinesOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Lines of Credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfLinesOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Repayments of line of credit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AdditionalCashReceivableFromSaleOfInterestInJointVentureForTransactionExpensesAndFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional cash receivable for transaction expenses and fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AdditionalCashReceivableFromSaleOfInterestInJointVentureForTransactionExpensesAndFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Cash Receivable From Sale Of Interest In Joint Venture For Transaction Expenses And Fees</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AdditionalCashReceivableFromSaleOfInterestInJointVentureForTransactionExpensesAndFees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Additional cash receivable from sale of interest in joint venture for transaction expenses and fees.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandTwentyOneServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">January two thousand twenty one service and performance warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandTwentyOneServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">January Two Thousand Twenty One Service And Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandTwentyOneServiceAndPerformanceWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">January 2021 Service and Performance Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLoansAndLeasesReceivablePolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLoansAndLeasesReceivablePolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_AT_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Austria</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_AT_lbl" xlink:role="http://www.xbrl.org/2003/role/label">AUSTRIA</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Recent Accounting Pronouncements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update and Change in Accounting Principle [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Real Estate, Type of Property</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Real Estate, Type of Property [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business combination, equity interest issuable, shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number of Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationAdjustmentsToNetOperatingLossesAmount_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Adjustments to Net Operating Losses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationAdjustmentsToNetOperatingLossesAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation,Adjustments to Net Operating Losses, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationAdjustmentsToNetOperatingLossesAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Effective income tax rate reconciliation,adjustments to net operating losses, amount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationAdjustmentsToNetOperatingLossesAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustments to Net Operating Losses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedules of Concentration of Risk, by Risk Factor [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Customers Representing Greater than 10% of Account Receivable and Total Revenue</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Tax Identification Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Tax Identification Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenues:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenues [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Price</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PresidentAndChiefExecutiveOfficerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stanley Jacot, Jr. [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PresidentAndChiefExecutiveOfficerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">President and Chief Executive Officer [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PresidentAndChiefExecutiveOfficerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">President and Chief Executive Officer [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_LimitedPartnersAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Limited Partners [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_LimitedPartnersAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Limited Partners Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_LimitedPartnersAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Limited partners agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loans, Notes, Trade and Other Receivables Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Note Receivable and Embedded Derivatives</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CustomerGMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Customer G</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CustomerGMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Customer G [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CustomerGMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Customer G.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AugustTwoThousandTwentyTwoPlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">August 2022 Placement Agent Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AugustTwoThousandTwentyTwoPlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">August Two Thousand Twenty Two Placement Agent Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AugustTwoThousandTwentyTwoPlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">August two thousand twenty two placement agent options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Local Phone Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Local Phone Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_BoardOfDirectorsChairmanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Mr. Kevin Comcowich [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_BoardOfDirectorsChairmanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Board of Directors Chairman [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other current liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Liabilities, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Liabilities, Current, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Royalty fees due</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Short term lease cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Lease, Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted-average number of shares used in per share calculations:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Diluted [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AuditorOpinionTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Auditor Opinion [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisposalGroupIncludingDiscontinuedOperationImpairmentOfPropertyAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disposal group including discontinued operation impairment of property and equipment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisposalGroupIncludingDiscontinuedOperationImpairmentOfPropertyAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group Including Discontinued Operation Impairment of Property And Equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisposalGroupIncludingDiscontinuedOperationImpairmentOfPropertyAndEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Impairment of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisposalGroupIncludingDiscontinuedOperationImpairmentOfPropertyAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Impairment of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisposalGroupIncludingDiscontinuedOperationImpairmentOfPropertyAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Impairment of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationAdjustmentsToNetOperatingLossesPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Adjustments to Net Operating Losses, Percent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationAdjustmentsToNetOperatingLossesPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Effective income tax rate reconciliation, adjustments to net operating losses, percent.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveIncomeTaxRateReconciliationAdjustmentsToNetOperatingLossesPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustments to Net Operating Losses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Offering costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Remaining offering costs allocated to common stock and offset to additional paid in capital</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DepreciationContinuingAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Depreciation Continuing and Discontinued Operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DepreciationContinuingAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Depreciation continuing and discontinued operations.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DepreciationContinuingAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Depreciation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DepreciationContinuingAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Depreciation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingPoliciesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Policies [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total revenues</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Revenue from Contract with Customer, Excluding Assessed Tax, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">License revenue</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantAndRightsOutstandingTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantAndRightsOutstandingTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrant and Rights Outstanding Term</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantAndRightsOutstandingTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Warrant and rights outstanding term.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveRateOfRoyaltyOfGrossSales_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Effective rate of royalty of gross sales</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveRateOfRoyaltyOfGrossSales_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective rate of royalty of gross sales</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EffectiveRateOfRoyaltyOfGrossSales_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Effective rate of royalty of gross sales</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock available for future grant</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted-average remaining recognition period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedProfessionalFeesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Legal</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedProfessionalFeesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Professional Fees, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maximum annual contribution per employee, percent</link:label>
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  <xsd:element id="rkda_EffectiveRateOfRoyaltyOfGrossSales" name="EffectiveRateOfRoyaltyOfGrossSales" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
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  <xsd:element id="rkda_CoPackingBusinessSaavyNaturalsProvaultAndSoulSpringBodyCareBrandsMember" name="CoPackingBusinessSaavyNaturalsProvaultAndSoulSpringBodyCareBrandsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
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  <xsd:element id="rkda_TechnologyRoyaltyRevenueReceivableOnTraitFeesFromSaleOfInterestInJointVenture" name="TechnologyRoyaltyRevenueReceivableOnTraitFeesFromSaleOfInterestInJointVenture" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
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  <xsd:element id="rkda_RentMaintenanceAndUtilitiesCurrentAndNoncurrent" name="RentMaintenanceAndUtilitiesCurrentAndNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
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  <xsd:element id="rkda_MilestonePaymentsReceived" name="MilestonePaymentsReceived" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_CustomerHMember" name="CustomerHMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
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  <xsd:element id="rkda_PreferredInvestmentOptionsLiabilityTerm" name="PreferredInvestmentOptionsLiabilityTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="rkda_OptionAmendmentAgreementsMember" name="OptionAmendmentAgreementsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_MarchTwoThousandTwentyThreeOptionsMember" name="MarchTwoThousandTwentyThreeOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_MasterTransactionAgreementMember" name="MasterTransactionAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_CommonStockAndPreFundedWarrantsMember" name="CommonStockAndPreFundedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_AssetPurchaseAgreementAndSecurityAgreementMember" name="AssetPurchaseAgreementAndSecurityAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_MarchTwoThousandTwentyThreeOptionsAndMarchTwoThousandTwentyThreePlacementAgentOptionsMember" name="MarchTwoThousandTwentyThreeOptionsAndMarchTwoThousandTwentyThreePlacementAgentOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_Rule10B51ArrModifiedFlag" name="Rule10B51ArrModifiedFlag" type="xbrli:booleanItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_LiquidityCapitalResourcesAndGoingConcernPolicyPolicyTextBlock" name="LiquidityCapitalResourcesAndGoingConcernPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_MarchTwoThousandTwentyThreeOptionsSeriesBMember" name="MarchTwoThousandTwentyThreeOptionsSeriesBMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_MarchTwoThousandEighteenPrivatePlacementMember" name="MarchTwoThousandEighteenPrivatePlacementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ExistingOptionsMember" name="ExistingOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ClassOfWarrantsOrRightsIssuanceMonthAndYear" name="ClassOfWarrantsOrRightsIssuanceMonthAndYear" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_JuneTwoThousandEighteenPlacementAgentWarrantsMember" name="JuneTwoThousandEighteenPlacementAgentWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_FirstOfferingPeriodEndDate" name="FirstOfferingPeriodEndDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMark-To-MarketAdjustmentsPercent" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMark-To-MarketAdjustmentsPercent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_PromissoryNotesMember" name="PromissoryNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ScheduleOfIncomeTaxTable" name="ScheduleOfIncomeTaxTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_IncomeTaxExaminationYearSubjectUnderExamination" name="IncomeTaxExaminationYearSubjectUnderExamination" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_AmortizationOfNoteReceivableDiscount" name="AmortizationOfNoteReceivableDiscount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_RevenueFromContractWithCustomerLiabilityCostOfGoodsSoldPolicyTextBlock" name="RevenueFromContractWithCustomerLiabilityCostOfGoodsSoldPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeitureOutstandingIntrinsicValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardForfeitureOutstandingIntrinsicValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_JanuaryTwoThousandTwentyOneServiceAndPerformanceWarrantsMember" name="JanuaryTwoThousandTwentyOneServiceAndPerformanceWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_PreferredInvestmentOptionsLiabilityOutstanding" name="PreferredInvestmentOptionsLiabilityOutstanding" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="rkda_February122020ServiceAndPerformanceWarrantsMember" name="February122020ServiceAndPerformanceWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ScheduleOfFiniteAndIndefiniteLivedIntangibleAssetsTableTextBlock" name="ScheduleOfFiniteAndIndefiniteLivedIntangibleAssetsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_AmendmentMember" name="AmendmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_CustomerEMember" name="CustomerEMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_CorporateSecuritiesReceivedSaleOfMembershipInterest" name="CorporateSecuritiesReceivedSaleOfMembershipInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_ArchipelagoVenturesHawaiiLLCMember" name="ArchipelagoVenturesHawaiiLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ScheduleOfKeyTermsAndActivityOfPreferredInvestmentOptionsTableTextBlock" name="ScheduleOfKeyTermsAndActivityOfPreferredInvestmentOptionsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_JuneTwoThousandNineteenSecuritiesPurchaseAgreementMember" name="JuneTwoThousandNineteenSecuritiesPurchaseAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_OperatingLossCarryforwardGenerated" name="OperatingLossCarryforwardGenerated" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_CommitmentsAndContingenciesTable" name="CommitmentsAndContingenciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_TransactionClosingDate" name="TransactionClosingDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="rkda_AdditionalCashReceivableFromSaleOfInterestInJointVenture" name="AdditionalCashReceivableFromSaleOfInterestInJointVenture" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_AugustTwoThousandTwentyTwoOptionsMember" name="AugustTwoThousandTwentyTwoOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ScheduleOfPropertyPlantAndEquipmentTableTextBlock" name="ScheduleOfPropertyPlantAndEquipmentTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_MarchTwoThousandAndTwentyThreeOfferingMember" name="MarchTwoThousandAndTwentyThreeOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_MarchTwoThousandTwentyThreePreFundedWarrantsMember" name="MarchTwoThousandTwentyThreePreFundedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_DeferredTaxAssetsAmortizedIntangibles" name="DeferredTaxAssetsAmortizedIntangibles" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_IncomeLossFromContinuingOperationsAndDiscontinuedOperationsBeforeIncomeTaxes" name="IncomeLossFromContinuingOperationsAndDiscontinuedOperationsBeforeIncomeTaxes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_SeptemberTwoThousandNineteenPurchaseAgreementMember" name="SeptemberTwoThousandNineteenPurchaseAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_TwoThousandFifteenOmnibusEquityIncentivePlanMember" name="TwoThousandFifteenOmnibusEquityIncentivePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_HCWainwrightCoLLCMember" name="HCWainwrightCoLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_RadianceBeautyLicensingAgreementMember" name="RadianceBeautyLicensingAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_InducementLettersMember" name="InducementLettersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_IndustrialSeedInnovationsMember" name="IndustrialSeedInnovationsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ProceedsFromSaleOfPatentPortfolio" name="ProceedsFromSaleOfPatentPortfolio" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_JuneTwoThousandEighteenPurchaseAgreementMember" name="JuneTwoThousandEighteenPurchaseAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_NumberOfTechnologyDevelopmentProgramsCeased" name="NumberOfTechnologyDevelopmentProgramsCeased" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_RevenueFromContractWithCustomerLiabilityPolicyTextBlock" name="RevenueFromContractWithCustomerLiabilityPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_April2019ServiceAndPerformanceWarrantsMember" name="April2019ServiceAndPerformanceWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ContingentLiabilitiesMember" name="ContingentLiabilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_SellingGeneralAndAdministrativeAndResearchAndDevelopmentExpensesMember" name="SellingGeneralAndAdministrativeAndResearchAndDevelopmentExpensesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_February32020ServiceAndPerformanceWarrantsMember" name="February32020ServiceAndPerformanceWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_FiniteAndIndefiniteLivedIntangibleAssetsLineItems" name="FiniteAndIndefiniteLivedIntangibleAssetsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_JanuaryTwoThousandTwentyOnePlacementAgentWarrantsMember" name="JanuaryTwoThousandTwentyOnePlacementAgentWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_MarchTwoThousandTwentyThreeOptionsSeriesAMember" name="MarchTwoThousandTwentyThreeOptionsSeriesAMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_MarchTwoThousandTwentyThreePlacementAgentOptionsMember" name="MarchTwoThousandTwentyThreePlacementAgentOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_CorporateSecuritiesReceivedInExchangeForLicenseAgreement" name="CorporateSecuritiesReceivedInExchangeForLicenseAgreement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_ScheduleOfOperatingLeaseTableTextBlock" name="ScheduleOfOperatingLeaseTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_CustomerDMember" name="CustomerDMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_NumberOfSharesOfCommonStockReceivableFromSaleOfInterestInJointVenture" name="NumberOfSharesOfCommonStockReceivableFromSaleOfInterestInJointVenture" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_InducementStockOptionMember" name="InducementStockOptionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_SoftwareAndComputerEquipmentMember" name="SoftwareAndComputerEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_MarchTwoThousandEighteenWarrantsMember" name="MarchTwoThousandEighteenWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_May2020WarrantsMember" name="May2020WarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_OutOfPocketCosts" name="OutOfPocketCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_OperatingLossCarryforwardDeferredTaxAsset" name="OperatingLossCarryforwardDeferredTaxAsset" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_PromissoryNoteOutstandingPrincipalAmountReserved" name="PromissoryNoteOutstandingPrincipalAmountReserved" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_UnwindingOfArchipelagoMember" name="UnwindingOfArchipelagoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_NumberOfSharesIssued" name="NumberOfSharesIssued" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_FairValueOfAboveFoodIngredientsIncCommonStockReceived" name="FairValueOfAboveFoodIngredientsIncCommonStockReceived" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_EffectiveIncomeTaxRateReconciliationAdjustmentsToNetOperatingLossesPercent" name="EffectiveIncomeTaxRateReconciliationAdjustmentsToNetOperatingLossesPercent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_OperatingLossCarryforwardsExpectedToBeUnavailableDueToAnOwnershipChange" name="OperatingLossCarryforwardsExpectedToBeUnavailableDueToAnOwnershipChange" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_OperatingLeaseAssets" name="OperatingLeaseAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_PromissoryNoteTerm" name="PromissoryNoteTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="rkda_CustomerConcentrationPolicyTextBlock" name="CustomerConcentrationPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_WarrantModificationIncludedInValuationLoss" name="WarrantModificationIncludedInValuationLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_OrganizationPolicyPolicyTextBlock" name="OrganizationPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpiredOutstandingIntrinsicValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardExpiredOutstandingIntrinsicValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_FirstOfferingPeriodStartDate" name="FirstOfferingPeriodStartDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_InventoryGoodsInProcessCurrentAndNonCurrent" name="InventoryGoodsInProcessCurrentAndNonCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_LegacyVenturesHawaiiLLCMember" name="LegacyVenturesHawaiiLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_OctoberTwoThousandAndTwentyTwoServiceAndPerformanceWarrantsMember" name="OctoberTwoThousandAndTwentyTwoServiceAndPerformanceWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_EstimatedFairValueOfLiabilityOptions" name="EstimatedFairValueOfLiabilityOptions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_FairValueOfCommonStockAndPreFundedWarrants" name="FairValueOfCommonStockAndPreFundedWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_PromissoryNotePrincipalReceviableEachYear" name="PromissoryNotePrincipalReceviableEachYear" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_ProceedsFromIssuanceOfCommonStockPreFundedWarrantsAndPreferredInvestmentOptions" name="ProceedsFromIssuanceOfCommonStockPreFundedWarrantsAndPreferredInvestmentOptions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_AccruedAuditAndTaxFees" name="AccruedAuditAndTaxFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_JuneTwoThousandNineteenWarrantsMember" name="JuneTwoThousandNineteenWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_May2020PlacementAgentWarrantsMember" name="May2020PlacementAgentWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_EffectiveIncomeTaxRateReconciliationAdjustmentsToNetOperatingLossesAmount" name="EffectiveIncomeTaxRateReconciliationAdjustmentsToNetOperatingLossesAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_SeptemberTwoThousandNineteenWarrantsPrivatePlacementOfferingMember" name="SeptemberTwoThousandNineteenWarrantsPrivatePlacementOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_DisposalGroupIncludingDiscontinuedOperationSellingGeneralAndAdministrativeExpense" name="DisposalGroupIncludingDiscontinuedOperationSellingGeneralAndAdministrativeExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_AugustTwoThousandTwentyTwoPreFundedWarrantsMember" name="AugustTwoThousandTwentyTwoPreFundedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_SeptemberTwoThousandNineteenPlacementAgentWarrantMember" name="SeptemberTwoThousandNineteenPlacementAgentWarrantMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_NumberOfLeaseAmendments" name="NumberOfLeaseAmendments" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="rkda_PromissoryNoteInterestDescription" name="PromissoryNoteInterestDescription" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMark-To-MarketAdjustmentsAmount" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMark-To-MarketAdjustmentsAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_RestrictedPeriodOnSaleOrTransferOfCommonStock" name="RestrictedPeriodOnSaleOrTransferOfCommonStock" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_ProceedsFromIssuanceOfCommonStockAndWarrantsGross" name="ProceedsFromIssuanceOfCommonStockAndWarrantsGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment" name="DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_MarchTwoThousandAndTwentyThreePIPEMember" name="MarchTwoThousandAndTwentyThreePIPEMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_EntityPlaceOfIncorporation" name="EntityPlaceOfIncorporation" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_MarchTwoThousandEighteenSecuritiesPurchaseAgreementMember" name="MarchTwoThousandEighteenSecuritiesPurchaseAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_EntityReincorporationStateCountryName" name="EntityReincorporationStateCountryName" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_FiniteAndIndefiniteLivedIntangibleAssetsTable" name="FiniteAndIndefiniteLivedIntangibleAssetsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_PresidentAndChiefExecutiveOfficerMember" name="PresidentAndChiefExecutiveOfficerMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRightsRemainingExercisable" name="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRightsRemainingExercisable" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="rkda_IndefiniteLivedIntangibleAssetsExcludingGoodwillGross" name="IndefiniteLivedIntangibleAssetsExcludingGoodwillGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_OperatingLossCarryforwardsWontExpire" name="OperatingLossCarryforwardsWontExpire" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_WarrantAndRightsOutstandingTerm" name="WarrantAndRightsOutstandingTerm" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_March2018PlacementAgentWarrantsMember" name="March2018PlacementAgentWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_InventoryFinishedGoodsCurrentAndNonCurrent" name="InventoryFinishedGoodsCurrentAndNonCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_StockIssuedDuringPeriodSharesRelatedToExerciseOfOptions" name="StockIssuedDuringPeriodSharesRelatedToExerciseOfOptions" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_PromissoryNoteCurrentAndNonCurrent" name="PromissoryNoteCurrentAndNonCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_OperatingLeaseTermExpirationMonthAndYear" name="OperatingLeaseTermExpirationMonthAndYear" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_WarrantsExpirationDate" name="WarrantsExpirationDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_DebtAndEquitySecurities" name="DebtAndEquitySecurities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_MilestonePaymentReceivableFromSaleOfInterestInJointVenture" name="MilestonePaymentReceivableFromSaleOfInterestInJointVenture" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantsOutstandingIntrinsicValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantsOutstandingIntrinsicValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_ClassOfWarrantOrRightExercisableTerm" name="ClassOfWarrantOrRightExercisableTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_AccountsReceivablesAndOtherReceivablesMember" name="AccountsReceivablesAndOtherReceivablesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_MarchTwoThousandTwentyThreeOptionsSeriesAAndMarchTwoThousandTwentyThreePlacementAgentOptionsMember" name="MarchTwoThousandTwentyThreeOptionsSeriesAAndMarchTwoThousandTwentyThreePlacementAgentOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_InventoryRawMaterialsCurrentAndNonCurrent" name="InventoryRawMaterialsCurrentAndNonCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_AugustTwoThousandAndTwentyTwoPurchaseAgreementMember" name="AugustTwoThousandAndTwentyTwoPurchaseAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_DecemberTwoThousandTwentyWarrantsPrivatePlacementOfferingMember" name="DecemberTwoThousandTwentyWarrantsPrivatePlacementOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_August2019ServiceAndPerformanceWarrantsMember" name="August2019ServiceAndPerformanceWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_CommonStockWarrantAndOptionLiabilities" name="CommonStockWarrantAndOptionLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_September2019PlacementAgentWarrantsMember" name="September2019PlacementAgentWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedTradeNamesAndTrademarks" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedTradeNamesAndTrademarks" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_PaymentReceivedFromContractor" name="PaymentReceivedFromContractor" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_IndefiniteLivedIntangibleAssetsAccumulatedAmortization" name="IndefiniteLivedIntangibleAssetsAccumulatedAmortization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_NonRule10B51ArrModifiedFlag" name="NonRule10B51ArrModifiedFlag" type="xbrli:booleanItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_ChangeInFairValueOfCommonStockWarrantLiabilitiesPolicyTextBlock" name="ChangeInFairValueOfCommonStockWarrantLiabilitiesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_SeriesBPreferredInvestmentOptionsMember" name="SeriesBPreferredInvestmentOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_March2020ServiceAndPerformanceWarrantsMember" name="March2020ServiceAndPerformanceWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ContractResearchAndGovernmentGrantsMember" name="ContractResearchAndGovernmentGrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_CustomerBMember" name="CustomerBMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFormulations" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFormulations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_NumberOfIndividualsAppointed" name="NumberOfIndividualsAppointed" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_AccountingPoliciesLineItems" name="AccountingPoliciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ChangeInFairValueOfContingentConsideration" name="ChangeInFairValueOfContingentConsideration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_SaleOfInterestInJointVentureDescriptionOfTransaction" name="SaleOfInterestInJointVentureDescriptionOfTransaction" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_ArcadiaBiosciencesIncorporationMember" name="ArcadiaBiosciencesIncorporationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_AugustTwoThousandTwentyTwoOptionsAndAugustTwoThousandTwentyTwoPlacementAgentOptionsMember" name="AugustTwoThousandTwentyTwoOptionsAndAugustTwoThousandTwentyTwoPlacementAgentOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_DisposalGroupIncludingDiscontinuedOperationWriteDownOfInventories" name="DisposalGroupIncludingDiscontinuedOperationWriteDownOfInventories" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_AdditionalPropertiesUnderLeaseAgreement" name="AdditionalPropertiesUnderLeaseAgreement" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_EffectiveIncomeTaxRateReconciliationReturn-To-ProvisionAdjustmentsPercent" name="EffectiveIncomeTaxRateReconciliationReturn-To-ProvisionAdjustmentsPercent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_PaycheckProtectionProgramMember" name="PaycheckProtectionProgramMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_SummaryOfAmortizedCostAndFairValueOfInvestmentSecuritiesTableTextBlock" name="SummaryOfAmortizedCostAndFairValueOfInvestmentSecuritiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_SaleOfInterestInJointVentureFixedConsiderationAgreedAmount" name="SaleOfInterestInJointVentureFixedConsiderationAgreedAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_LaboratoryEquipmentMember" name="LaboratoryEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_OtherAdjustments" name="OtherAdjustments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_AugustTwoThousandTwentyTwoPlacementAgentOptionsMember" name="AugustTwoThousandTwentyTwoPlacementAgentOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_AccruedConsultingFeesCurrent" name="AccruedConsultingFeesCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_OtherThanTemporaryImpairmentsOnInvestmentsPolicyTextBlock" name="OtherThanTemporaryImpairmentsOnInvestmentsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_MarchTwoThousandTwentyThreeSecuritiesPurchasePurchaseAgreementMember" name="MarchTwoThousandTwentyThreeSecuritiesPurchasePurchaseAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_EmployeeStockPurchasePlanOfferingPeriod" name="EmployeeStockPurchasePlanOfferingPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_OperatingLossCarryforwardUnutilized" name="OperatingLossCarryforwardUnutilized" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_ExchangeAgreementTerminationDate" name="ExchangeAgreementTerminationDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_IncreaseDecreaseInOperatingLeasePayments" name="IncreaseDecreaseInOperatingLeasePayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_CustomerCMember" name="CustomerCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_EffectiveIncomeTaxRateReconciliationReturn-To-ProvisionAdjustmentsAmount" name="EffectiveIncomeTaxRateReconciliationReturn-To-ProvisionAdjustmentsAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_OperatingLeaseLiabilitiesAbstract" name="OperatingLeaseLiabilitiesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_EntityReincorporationDateOfReincorporation" name="EntityReincorporationDateOfReincorporation" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_ProceedsFromSaleOfPropertyPlantAndEquipmentContinuingOperations" name="ProceedsFromSaleOfPropertyPlantAndEquipmentContinuingOperations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_NumberOfSharesIssuable" name="NumberOfSharesIssuable" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="rkda_LineOfCreditFacilityAgreementDate" name="LineOfCreditFacilityAgreementDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_AdditionalCashReceivableFromSaleOfInterestInJointVentureForTransactionExpensesAndFees" name="AdditionalCashReceivableFromSaleOfInterestInJointVentureForTransactionExpensesAndFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_OperatingLeaseAssetsAbstract" name="OperatingLeaseAssetsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_JanuaryTwoThousandTwentyOneWarrantsMember" name="JanuaryTwoThousandTwentyOneWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_DiscountedPromissoryNote" name="DiscountedPromissoryNote" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_JuneTwoThousandNineteenPlacementAgentWarrantsMember" name="JuneTwoThousandNineteenPlacementAgentWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ContractualAgreementMonthAndYear" name="ContractualAgreementMonthAndYear" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_PercentageOfRoyaltyPaymentsOnNetRevenues" name="PercentageOfRoyaltyPaymentsOnNetRevenues" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_JohnSperlingFoundationMember" name="JohnSperlingFoundationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_VerdecaLLCMember" name="VerdecaLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_WarrantsAndOptionsDisclosureTextBlock" name="WarrantsAndOptionsDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_DebtAndEquitySecuritiesAccumulatedGrossUnrealizedLossBeforeTax" name="DebtAndEquitySecuritiesAccumulatedGrossUnrealizedLossBeforeTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_RemainingWarrantsExpirationPeriod" name="RemainingWarrantsExpirationPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_BodyCareMember" name="BodyCareMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_June2019PlacementAgentWarrantsMember" name="June2019PlacementAgentWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_SeriesAPreferredInvestmentOptionsMember" name="SeriesAPreferredInvestmentOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_PaymentForSaleOfDisposalGroupIncludingDiscontinuedOperation" name="PaymentForSaleOfDisposalGroupIncludingDiscontinuedOperation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_JanuaryTwoThousandTwentyOnePrivatePlacementMember" name="JanuaryTwoThousandTwentyOnePrivatePlacementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_PercentageOfSharesExercisedInTransaction" name="PercentageOfSharesExercisedInTransaction" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="rkda_PlacementAgentOptionsMember" name="PlacementAgentOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ArcadiaBiosciencesIncMember" name="ArcadiaBiosciencesIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_DebtAndEquitySecuritiesAccumulatedGrossUnrealizedGainBeforeTax" name="DebtAndEquitySecuritiesAccumulatedGrossUnrealizedGainBeforeTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_OutsideServices" name="OutsideServices" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_OfferingClosingPeriod" name="OfferingClosingPeriod" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_July2020PlacementAgentWarrantsMember" name="July2020PlacementAgentWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_November2020TransactionMember" name="November2020TransactionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ScheduleOfPropertyPlantAndEquipmentEstimatedUsefulLifeTableTextBlock" name="ScheduleOfPropertyPlantAndEquipmentEstimatedUsefulLifeTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_PreferredInvestmentOptionsLiabilityExercisePricePerShare" name="PreferredInvestmentOptionsLiabilityExercisePricePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="rkda_CommonStockOptionsIssuedToPlacementAgentAndIncludedInOfferingCosts" name="CommonStockOptionsIssuedToPlacementAgentAndIncludedInOfferingCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_DebtAndEquitySecuritiesAmortizedCostBasis" name="DebtAndEquitySecuritiesAmortizedCostBasis" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_PaymentsForTerminationFees" name="PaymentsForTerminationFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_FormulationsMember" name="FormulationsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_BusinessAcquisitionNetIncomeLossAttributableToCommonStockholders" name="BusinessAcquisitionNetIncomeLossAttributableToCommonStockholders" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_ChangeInFairValueOfCommonStockWarrantAndOptionLiabilities" name="ChangeInFairValueOfCommonStockWarrantAndOptionLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_StockIssuedDuringPeriodSharesRelatedToExerciseOfWarrants" name="StockIssuedDuringPeriodSharesRelatedToExerciseOfWarrants" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_SeptemberTwoThousandNineteenWarrantsMember" name="SeptemberTwoThousandNineteenWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_MidFirstBankMember" name="MidFirstBankMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_AccruedRentAndUtilitiesCurrent" name="AccruedRentAndUtilitiesCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_DeferredTaxLiabilitiesRightOfUseAsset" name="DeferredTaxLiabilitiesRightOfUseAsset" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_DeferredTaxAssetsAccruedPayrollAndBenefits" name="DeferredTaxAssetsAccruedPayrollAndBenefits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_ArcadiaWellnessLimitedLiabilityCompanyMember" name="ArcadiaWellnessLimitedLiabilityCompanyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_CustomerFOneMember" name="CustomerFOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_MarchTwoThousandTwentyThreePrivatePlacementMember" name="MarchTwoThousandTwentyThreePrivatePlacementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_DefinedBenefitPlanContributionVestingPeriod" name="DefinedBenefitPlanContributionVestingPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_NumberOfAdditionalPrepaymentSharesIssuable" name="NumberOfAdditionalPrepaymentSharesIssuable" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="rkda_CollaborativeArrangementsCopromotionMember" name="CollaborativeArrangementsCopromotionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_May2020WarrantsPrivatePlacementOfferingMember" name="May2020WarrantsPrivatePlacementOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_AccruedResearchAndDevelopmentCurrent" name="AccruedResearchAndDevelopmentCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_GoodwheatMember" name="GoodwheatMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_PercentageOfRoyaltyPaymentsOnNetRevenuesReceivedFromSalesOfLicensedWheatProducts" name="PercentageOfRoyaltyPaymentsOnNetRevenuesReceivedFromSalesOfLicensedWheatProducts" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_DeferredTaxAssetsSectionOneSevenFourCapitalization" name="DeferredTaxAssetsSectionOneSevenFourCapitalization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_PreferredInvestmentOptionsLiabilityOutstandingMeasurementInput" name="PreferredInvestmentOptionsLiabilityOutstandingMeasurementInput" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="rkda_CommitmentsAndContingenciesLineItems" name="CommitmentsAndContingenciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeposits" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeposits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseContingentLiabilityWrite-OffsPercent" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseContingentLiabilityWrite-OffsPercent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_ContractResearchAndGovernmentGrantRevenuesMember" name="ContractResearchAndGovernmentGrantRevenuesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_UnregisteredPreferredInvestmentOptionsMember" name="UnregisteredPreferredInvestmentOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ProductCostOfGoodsSold" name="ProductCostOfGoodsSold" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_AssetPurchaseAgreementMember" name="AssetPurchaseAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_July2020WarrantsMember" name="July2020WarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_LimagrainCerealSeedsLLCMember" name="LimagrainCerealSeedsLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_DisposalGroupIncludingDiscontinuedOperationImpairmentOfPropertyAndEquipment" name="DisposalGroupIncludingDiscontinuedOperationImpairmentOfPropertyAndEquipment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_CorporateExpenses" name="CorporateExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_AdditionalAccountsReceivableProceedsReceived" name="AdditionalAccountsReceivableProceedsReceived" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_WriteDownOfNonControllingInterest" name="WriteDownOfNonControllingInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_TwoThousandSixStockIncentivePlanMember" name="TwoThousandSixStockIncentivePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_AccountsReceivableWrittenDown" name="AccountsReceivableWrittenDown" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_Non-AccountableExpenses" name="Non-AccountableExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_JuneTwoThousandEighteenWarrantsMember" name="JuneTwoThousandEighteenWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ShelfRegistrationStatementExpirationPeriod" name="ShelfRegistrationStatementExpirationPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_DecemberTwoThousandTwentyWarrantsMember" name="DecemberTwoThousandTwentyWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_LimitedPartnersAgreementMember" name="LimitedPartnersAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_ScheduleOfInventoryCurrentAndNonCurrentTableTextBlock" name="ScheduleOfInventoryCurrentAndNonCurrentTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_AugustTwoThousandAndTwentyTwoOfferingMember" name="AugustTwoThousandAndTwentyTwoOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_JanuaryTwoThousandTwentyOneSecuritiesPurchasePurchaseAgreementMember" name="JanuaryTwoThousandTwentyOneSecuritiesPurchasePurchaseAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_DisclosureOfCompensationRelatedCostsShareBasedPaymentsAndWarrantsAbstract" name="DisclosureOfCompensationRelatedCostsShareBasedPaymentsAndWarrantsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_PercentageOfManagementFeePaid" name="PercentageOfManagementFeePaid" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_AccountingPoliciesTable" name="AccountingPoliciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
</xsd:schema>
