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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ChangeInFairValueOfCommonStockWarrantAndOptionLiabilities_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">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="rkda_May2020PlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">May 2020 placement agent warrants.</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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 2 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 2 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies Disclosure [Text Block]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandEighteenOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Two Thousand Eighteen Offering [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandEighteenOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2018 Offering [Member]</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/terseLabel">Common stock, authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Asset, Expected Amortization, Year Four</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2026</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasicAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Basic [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductOrServiceAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Product and Service [Axis]</link:label>
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          <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="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="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">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/terseLabel">Document Fiscal Period Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate202309Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounting Standards Update 2023-09 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate202309Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update 2023-09 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Shell Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Shell Company</link:label>
          <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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Short-term Investments [Member]</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/label">Cash and Cash Equivalent</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/terseLabel">Cash and cash equivalents</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/totalLabel">Cash and Cash Equivalents, at Carrying Value, Total</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/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/documentation">Laboratory equipment.</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/terseLabel">Laboratory equipment [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, issued</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Common Stock, Shares, Issued, Total</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_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_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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Right-of-Use Asset Obtained in Exchange for Operating Lease Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Right of use assets obtained in exchange for new operating lease liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLossAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Income (Loss) [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLossAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating expenses (income):</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PaymentForSaleOfDisposalGroupIncludingDiscontinuedOperation_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Cash paid related to sale of GoodWheat</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PaymentForSaleOfDisposalGroupIncludingDiscontinuedOperation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payment For Sale Of Disposal Group, Including Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PaymentForSaleOfDisposalGroupIncludingDiscontinuedOperation_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Payment for sale of disposal group, including discontinued operation.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employees are able to purchase company's common stock on first trading day of offering period, percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Warrant liabilities.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrant Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_WarrantLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrant liabilities</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="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/terseLabel">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/label">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/terseLabel">Statement [Line Items]</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>
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          <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_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_LossContingencyLawsuitFilingDate1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Complaint filing date</link:label>
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          <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="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="us-gaap_PriorPeriodReclassificationAdjustmentDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reclassifications</link:label>
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          <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>
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          <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>
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          <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_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="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="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/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="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/verboseLabel">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/label">Shares Issued, Price Per Share</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="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="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/terseLabel">December 2020 Placement Agent 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/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="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="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/terseLabel">Goods in process</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 Income Tax Rate Reconciliation, Percent, Total</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/terseLabel">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/terseLabel">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/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>
          <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 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/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/verboseLabel">Promissory note, principal receviable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from sale of RS durum wheat trait</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Proceeds from sale of intangible assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromSaleOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from sale of patent portfolio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesFinancingTransactionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Financing Transaction [Axis]</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/label">Additional Paid in Capital, Common Stock</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/terseLabel">Additional paid-in capital</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/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="us-gaap_RelatedPartyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Preferred investment options liability.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Investment Options Liability [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred Investment Options Liability [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property Plant And Equipment [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Terms of Award</link:label>
          <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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputRiskFreeInterestRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input, Risk Free Interest Rate [Member]</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/terseLabel">Risk-Free Interest Rate [Member]</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>
          <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="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Shares Subject to Outstanding, Options Granted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Earnings per Share Basic and Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]</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/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="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_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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfKeyTermsAndActivityOfPreferredInvestmentOptionsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Schedule of key terms and activity of preferred investment options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ScheduleOfKeyTermsAndActivityOfPreferredInvestmentOptionsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Key Terms And Activity Of Preferred Investment Options [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Name [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net income (loss) per basic share attributable to common stockholders</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basic net (loss) income per share attributable to common stockholders:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net income (loss) per basic share attributable to common stockholders</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="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/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/terseLabel">Total number of options outstanding</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="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/terseLabel">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/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/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="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_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/terseLabel">Software and computer equipment [Member]</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="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_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/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_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="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/documentation">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/label">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/terseLabel">Summary of Changes in Fair Value and Other Adjustments of Assets and Liabilities</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="rkda_AugustTwoThousandTwentyTwoOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">August two thousand twenty two options.</link:label>
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          <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>
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          <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/documentation">Co-packing business, saavy naturals, provault and soul spring body care brands.</link:label>
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          <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>
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          <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>
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          <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>
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          <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>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeaseDescriptionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Lease, Description [Line Items]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amendment Flag</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductsAndServicesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Product and Service</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right, Number of Securities Called by Warrants or Rights</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrant issued, shares of common stock called by warrant</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ChiefExecutiveOfficerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Chief Executive Officer [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandAndTwentyOneOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">January two thousand and twenty one offering.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandAndTwentyOneOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">January Two Thousand And Twenty One Offering [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandAndTwentyOneOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">January 2021 Offering [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityExercisePricePerShare_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="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="rkda_PreferredInvestmentOptionsLiabilityExercisePricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Investment Options Liability Exercise Price Per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current assets of discontinued operations - GoodWheat</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Postal Zip Code</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreeOptionsSeriesAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March two thousand twenty three options series A.</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/documentation">March two thousand twenty three securities purchase purchase agreement.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update and Change in Accounting Principle [Table]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Thereafter</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_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_EarningsPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings Per Share [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net income (loss) per share attributable to common stockholders:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProductCostOfGoodsSold_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Product Cost Of Goods Sold</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProductCostOfGoodsSold_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Product cost of goods sold.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProductCostOfGoodsSold_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Product COGS</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNoteInterestDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Promissory note interest description</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PromissoryNoteInterestDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Promissory Note Interest Description</link:label>
          <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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IncrementalCommonSharesAttributableToDilutiveEffectOfWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incremental Common Shares Attributable to Dilutive Effect of Warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IncrementalCommonSharesAttributableToDilutiveEffectOfWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Incremental common shares attributable to dilutive effect of warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IncrementalCommonSharesAttributableToDilutiveEffectOfWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Effect of dilutive warrants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NoteReceivableRecognizedFromSaleOfGoodWheat_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Note receivable recognized from sale of GoodWheat</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NoteReceivableRecognizedFromSaleOfGoodWheat_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Note Receivable Recognized From Sale Of Good Wheat</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NoteReceivableRecognizedFromSaleOfGoodWheat_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Note receivable recognized from sale of good wheat.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Right-of-Use Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Right of use asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesPerEmployee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of shares awarded o individual employee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesPerEmployee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Number of Shares Per Employee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Inventory Disclosure [Abstract]</link:label>
          <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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_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_DisposalGroupIncludingDiscontinuedOperationRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Disposal Group, Including Discontinued Operation, Revenue, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenue</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group, Including Discontinued Operation, Revenue</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightAxis_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="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/verboseLabel">Document Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisposalGroupIncludingDiscontinuedOperationSellingGeneralAndAdministrativeExpense_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="rkda_DisposalGroupIncludingDiscontinuedOperationSellingGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group, Including Discontinued Operation Selling, General and Administrative Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisposalGroupIncludingDiscontinuedOperationSellingGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disposal group including discontinued operation selling general and administrative expense.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisposalGroupIncludingDiscontinuedOperationSellingGeneralAndAdministrativeExpense_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="rkda_JuneTwoThousandAndNineteenOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">June two thousand and nineteen offering.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandAndNineteenOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">June Two Thousand And Nineteen Offering [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JuneTwoThousandAndNineteenOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">June 2019 Offering [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfArrangementAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfArrangementAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collaborative Arrangement and Arrangement Other than Collaborative</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OptionAmendmentAgreementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Option Amendment Agreements [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OptionAmendmentAgreementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Option Amendment Agreements [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OptionAmendmentAgreementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Option amendment agreements.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ArrangementsAndNonarrangementTransactionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ArrangementsAndNonarrangementTransactionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collaborative Arrangement and Arrangement Other than Collaborative</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Central Index Key</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Central Index Key</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Receivable, Allowance for Credit Loss, Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Allowance for credit losses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationAbstract_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_AssetsOfDisposalGroupIncludingDiscontinuedOperationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group, Including Discontinued Operation, Assets [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments, Debt and Equity Securities [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net decrease in cash and cash equivalents</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AnawahIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Anawah Inc.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AnawahIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Anawah Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AnawahIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Anawah, Inc [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Antidilutive securities not included in the diluted per share calculations, amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EntityIncorporationYearOfIncorporation_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Entity incorporation year of incorporation.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EntityIncorporationYearOfIncorporation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Incorporation Year Of Incorporation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_EntityIncorporationYearOfIncorporation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Year of incorporation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisposalGroupClassificationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group Classification [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProceedsFromIssuanceOfCommonStockPreFundedWarrantsAndPreferredInvestmentOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from issuance of common stock, pre-funded warrants and preferred investment options from March 2023 PIPE</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProceedsFromIssuanceOfCommonStockPreFundedWarrantsAndPreferredInvestmentOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds from issuance of common stock pre-funded warrants and preferred investment options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProceedsFromIssuanceOfCommonStockPreFundedWarrantsAndPreferredInvestmentOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance of Common Stock Pre-funded Warrants and Preferred Investment Options</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, par value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Par or Stated Value Per Share</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/label">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="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_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_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/terseLabel">January 2021 Warrants [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/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/documentation">January two thousand twenty one warrants private placement offering.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PropertyPlantAndEquipmentNetIncludingDiscontinuedOperations_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="rkda_PropertyPlantAndEquipmentNetIncludingDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment, Net Including Discontinued Operations</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PropertyPlantAndEquipmentNetIncludingDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Property, plant and equipment, net including discontinued operations.</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="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="us-gaap_RealizedInvestmentGainsLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gain on receipt of Above Food Ingredients, Inc. common stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProceedsFromSaleOfRSDurumWheatTrait_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds From Sale of RS Durum Wheat Trait</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProceedsFromSaleOfRSDurumWheatTrait_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from sale of RS durum wheat trait</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProceedsFromSaleOfRSDurumWheatTrait_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds from sale of RS durum wheat trait</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="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="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="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_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/terseLabel">John Sperling Foundation [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_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/documentation">Series A preferred investment options.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentQuarterlyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Quarterly Report</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentQuarterlyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Quarterly Report</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="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/terseLabel">Summary of Inventories</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="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/terseLabel">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/documentation">Fair value of common stock and pre-funded warrants.</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/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 income (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/label">Common Stock, Capital Shares Reserved for Future Issuance</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_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_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Effect of dilutive stock options</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="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_DiscontinuedOperationsPolicyTextBlock_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_DiscontinuedOperationsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Discontinued Operations, Policy [Policy Text Block]</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="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/terseLabel">Fair value assumptions, value</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/label">License [Member]</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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CollaborativeArrangementDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement Disclosure [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CollaborativeArrangementDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collaborative Arrangements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Comprehensive Income (Loss), Net of Tax [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other comprehensive income, net of tax</link:label>
          <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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_July2020WarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">July2020 Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_July2020WarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">July 2020 Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Continuing Operations, Per Basic Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basic net income (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_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Event [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional shares authorized for issuance under the plan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ChangeInFairValueOfContingentConsideration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change in Fair Value of Contingent Consideration</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ChangeInFairValueOfContingentConsideration_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Change in fair value of contingent consideration.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ChangeInFairValueOfContingentConsideration_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Change in fair value of contingent consideration</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Assets, Noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other noncurrent assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Other Assets, Noncurrent, Total</link:label>
          <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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputExpectedTermMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input, Expected Term [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputExpectedTermMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Remaining Term [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities [Axis]</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_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="rkda_MarchTwoThousandTwentyThreePlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2023 Placement Agent Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreePlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Two Thousand Twenty Three Placement Agent Options [Member]</link:label>
          <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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_March2023AndAugust2022OptionsAndPlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2023, August 2022 Options and Placement Agent Options [Member]</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_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="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">AOCI Attributable to Parent [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated Other Comprehensive Income [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Assets, Major Class Name [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Finite-Lived Intangible Assets, Major Class Name</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfEquityIncentivePlans_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of equity incentive plans.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfEquityIncentivePlans_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Equity Incentive Plans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NumberOfEquityIncentivePlans_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of equity incentive plans</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="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="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_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/terseLabel">Liabilities</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_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_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/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/totalLabel">Total SG&amp;A</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="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="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_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_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="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="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="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="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="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_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/terseLabel">Place of reincorporation</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="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/terseLabel">Bioceres Crop Solutions [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="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="rkda_BasisOfPresentationAndPrinciplesOfConsolidationPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Basis of presentation and principles of consolidation.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BasisOfPresentationAndPrinciplesOfConsolidationPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Basis Of Presentation And Principles Of Consolidation Policy Policy [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_BasisOfPresentationAndPrinciplesOfConsolidationPolicyPolicyTextBlock_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="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_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_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_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_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/label">Shares, Outstanding</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/periodStartLabel">Stockholders Equity, Beginning Balance, Shares</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_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="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="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_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_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="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="rkda_StockIssuedDuringPeriodSharesRelatedToExerciseOfOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exercised during the period</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="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="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/label">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/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">Decrease in 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="rkda_MarchTwoThousandTwentyThreePreFundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">March 2023 Pre-Funded Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreePreFundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Two Thousand Twenty Three Pre Funded Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandTwentyThreePreFundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March Two Thousand Twenty Three Pre Funded Warrants.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeaseDescriptionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Lease, Description [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeaseDescriptionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lessee Lease Description [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsHeldForSaleLongLivedFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property and equipment classified as assets held for sale, fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Accrued interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income (Expense), Operating</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Interest Income (Expense), Net, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net losses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_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="rkda_ProceedsFromIssuanceOfCommonStockAndWarrantsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds from issuance of common stock and warrants gross.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProceedsFromIssuanceOfCommonStockAndWarrantsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds From Issuance Of Common Stock And Warrants Gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProceedsFromIssuanceOfCommonStockAndWarrantsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from issuance of common stock and warrants gross</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityPeriodicPaymentInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest under the Promissory Note</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityPeriodicPaymentInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Periodic Payment, Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average shares - Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted average shares - Basic</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Weighted Average Number of Shares Outstanding, Basic, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Weighted average number of common shares outstanding</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeAmortizationOfDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortization of discount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeAmortizationOfDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Income, Amortization of Discount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Information [Line Items]</link:label>
          <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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandTwentyOnePlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">January Two Thousand Twenty One Placement Agent Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_JanuaryTwoThousandTwentyOnePlacementAgentWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">January 2021 Placement Agent Warrants [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_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_IncreaseDecreaseInOtherCurrentLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Other Current Liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CommonStockAndPreFundedWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock and Pre-Funded Warrants [Member]</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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment in continuous unrealized loss position for more than twelve months</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementBusinessSegmentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segments [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Lived Tangible Asset [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_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_StockIssuedDuringPeriodSharesReverseStockSplits_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Additional shares of common stock of reverse stock split</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of shares related to reverse stock split</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, Reverse Stock Splits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DecemberTwoThousandTwentyWarrantsPrivatePlacementOfferingMember_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_DecemberTwoThousandTwentyWarrantsPrivatePlacementOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">December Two Thousand Twenty Warrants Private Placement Offering [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DecemberTwoThousandTwentyWarrantsPrivatePlacementOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">December two thousand twenty warrants private placement offering.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Events</link:label>
          <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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AugustTwoThousandAndTwentyTwoOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">August Two Thousand And Twenty Two Offering [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AugustTwoThousandAndTwentyTwoOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">August 2022 Offering [Member]</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/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/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/totalLabel">APIC, Share-based Payment Arrangement, Increase for Cost Recognition, Total</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="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/terseLabel">Archipelago Ventures Hawaii, LLC [Member]</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="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/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="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="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="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/terseLabel">Legacy Ventures Hawaii, LLC [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2022 (excluding the nine months ended September 30, 2022)</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_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_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_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_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_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_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="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="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="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="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/label">Noncontrolling 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/terseLabel">Non-Controlling Interest [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CommonStockWarrantLiabilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock Warrant Liability [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CommonStockWarrantLiabilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common stock warrant liability.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_CommonStockWarrantLiabilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock Warrant Liability [Member]</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 INVESTING AND FINANCING ACTIVITIES:</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="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/totalLabel">Total leased 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/label">Business Combination, Effective Date of Acquisition</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="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="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/terseLabel">Organization</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/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/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/terseLabel">Basic net income (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/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/2003/role/terseLabel">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/label">Plan Name [Domain]</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_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_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_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="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</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="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Description of Business and Basis of Presentation</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_NoteReceivableBifurcatedDerivativesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">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">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="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="rkda_AssetPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset Purchase Agreement [Member]</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_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_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_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_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="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="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/terseLabel">Collaborative Arrangements [Member]</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="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="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="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="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/terseLabel">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/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/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/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/verboseLabel">Current note receivable</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 7)</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="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="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="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="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/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/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/documentation">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/terseLabel">Commitments And Contingencies [Table]</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="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/terseLabel">Issuance Date</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="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="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_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_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/terseLabel">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_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 income (loss)</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="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/terseLabel">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/label">Measurement Input Type [Domain]</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_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/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="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/terseLabel">Diluted net income (loss) per share attributable to common stockholders from discontinued operations</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_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/terseLabel">2015 Omnibus Equity Incentive Plan [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/terseLabel">May 2020 Warrants [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/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="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_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/verboseLabel">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/totalLabel">Increase (Decrease) in Due to Related Parties, Total</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="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="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">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/verboseLabel">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/label">Assets, Current</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="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="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="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/label">Title and Position [Axis]</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="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="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_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="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_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="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/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_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/terseLabel">Unrealized Gains</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/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="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_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="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/terseLabel">Finished goods</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="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/label">Financial Instruments [Domain]</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="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="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/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/verboseLabel">Remaining term (in years)</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="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/documentation">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/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/terseLabel">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/documentation">Disclosure of compensation related costs share based payments and warrants.</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="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 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/totalLabel">Weighted average number of common shares outstanding - 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/verboseLabel">Weighted average number of common shares outstanding</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">Securities Act 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/terseLabel">Entity File Number</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="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="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_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_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/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/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/documentation">December 2020 warrants.</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/terseLabel">December 2020 Warrants [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/label">Prepaid Expense and Other Assets, Current</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_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_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_USTreasurySecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Treasury Bills [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_USTreasurySecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">US Treasury Securities [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/label">Number of Operating Segments</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_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_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_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/verboseLabel">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/terseLabel">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/documentation">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/terseLabel">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/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/documentation">Series A and B preferred investment options.</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/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/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_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/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_GainLossOnDispositionOfAssets1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss on sale 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/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_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_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="dei_FormerAddressMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Former Address [Member]</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_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_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_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_InvestmentTypeExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Type [Extensible Enumeration]</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="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/terseLabel">Arcadia Biosciences, Inc [Member]</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_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_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/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/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/label">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/terseLabel">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/verboseLabel">Operating lease liability &#8212; 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/label">Collaborative Arrangement and Arrangement Other than Collaborative [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/terseLabel">Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]</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="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="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="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent_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_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_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_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/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/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/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/totalLabel">Asset Impairment Charges, Total</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_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_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/documentation">Estimated fair value options exceeded gross proceeds.</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_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_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_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="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_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_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_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_FiniteLivedIntangibleAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">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/label">Earnings Per Share [Text Block]</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 Income (Loss) per Share</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/label">Measurement Input, Expected Dividend Rate [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/terseLabel">Expected Dividend Yield [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">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/verboseLabel">Net (loss) income from continuing operations</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 income (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/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="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/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/periodEndLabel">Aggregate Intrinsic Value, Ending Balance</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/terseLabel">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/label">Inventory Write-down</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/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/totalLabel">Increase (Decrease) in Inventories, Total</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/label">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/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/2009/role/negatedTerseLabel">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/label">Warrants and Rights Outstanding, 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">Remaining 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/verboseLabel">Term</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_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividend yield</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">Total intangible asset, Net Carrying Amount</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/terseLabel">Intangible assets, net</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="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/terseLabel">September 2019 Warrants [Member]</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/label">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/terseLabel">March 2023 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/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/documentation">March two thousand twenty three options series B.</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_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_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_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_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/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/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/documentation">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/terseLabel">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/documentation">Warrants and options disclosure.</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/terseLabel">Warrants and Options</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="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="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="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="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="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in fair value</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="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/terseLabel">Schedule of Leases</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/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/verboseLabel">Investing activities</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/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/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/verboseLabel">Fair value of common stock</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/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="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/terseLabel">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="us-gaap_GainLossOnSaleOfBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss on sale of brand</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="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="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/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="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Asset, Expected Amortization, Year One</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2023</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DebtAndEquitySecuritiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Debt and equity securities current.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DebtAndEquitySecuritiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt And Equity Securities Current</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DebtAndEquitySecuritiesCurrent_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="srt_RestatementDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revision of Prior Period [Domain]</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="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_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_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="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/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/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/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/label">Assets, Fair Value Disclosure</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_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_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="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_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/terseLabel">Offering closing period</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_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="rkda_AugustTwoThousandTwentyTwoOptionsAndAugustTwoThousandTwentyTwoPlacementAgentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">August 2022 Options &amp; August 2022 Placement Agent Options [Member]</link:label>
          <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/label">August Two Thousand Twenty Two Options and August Two Thousand Twenty Two Placement Agent Options [Member]</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 and 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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash provided by investing activities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchase Agreement [Member]</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="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="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="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/documentation">September two thousand nineteen warrants private placement offering.</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_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_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/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/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/label">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/terseLabel">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/label">Related and Nonrelated Parties [Domain]</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="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/documentation">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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Disclosure [Text Block]</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_ProceedsFromSaleOfOtherInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from sale of RS durum wheat trait</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/verboseLabel">Proceeds from sale of 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/label">Collaborative Arrangement and Arrangement Other than Collaborative [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/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_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="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="rkda_DisposalGroupIncludingDiscontinuedOperationGainLossOnSaleOfPropertyAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disposal Group Including Discontinued Operation Gain (Loss) on Sale of Property and Equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisposalGroupIncludingDiscontinuedOperationGainLossOnSaleOfPropertyAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disposal group including discontinued operation gain (loss) on sale of property and equipment.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisposalGroupIncludingDiscontinuedOperationGainLossOnSaleOfPropertyAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss on sale of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisposalGroupIncludingDiscontinuedOperationGainLossOnSaleOfPropertyAndEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Loss on sale of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_DisposalGroupIncludingDiscontinuedOperationGainLossOnSaleOfPropertyAndEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Loss (Gain) on sale of property and equipment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Information [Table]</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/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/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/totalLabel">Other Liabilities, Noncurrent, Total</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/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]</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>
          <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="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/periodStartLabel">Weighted-Average Exercise Price Per Share, Outstanding Beginning Balance</link:label>
          <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="rkda_TwoThousandSixStockIncentivePlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand Six Stock Incentive Plan [Member]</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>
          <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>
          <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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrecognized Tax Benefits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Uncertain tax positions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Unrecognized Tax Benefits, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Unrecognized Tax Benefits, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid-in Capital [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional Paid-In Capital [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesAndLoansReceivableNetNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, after Allowance for Credit Loss, Noncurrent</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesAndLoansReceivableNetNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Financing Receivable, after Allowance for Credit Loss, Noncurrent, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesAndLoansReceivableNetNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Note receivable - noncurrent, net of allowance for credit losses (Note 7)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AssetPurchaseAgreementAndSecurityAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Purchase Agreement and Security Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AssetPurchaseAgreementAndSecurityAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Asset purchase agreement and security agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_AssetPurchaseAgreementAndSecurityAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset Purchase Agreement and Security Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OutsideServices_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Outside Services</link:label>
          <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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_OutsideServices_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Outside services</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Income Location, Balance [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Statement Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProceedsFromSaleOfPatentPortfolio_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceed from sale of patent portfolio</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ProceedsFromSaleOfPatentPortfolio_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Proceeds from sale of patent portfolio.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">New Accounting Pronouncements or Change in Accounting Principle [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdoptionDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in accounting principle, accounting standards update, adoption date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdoptionDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change in Accounting Principle, Accounting Standards Update, Adoption Date</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="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="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule Of Finite Lived Intangible Assets [Table]</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/label">Property, Plant and Equipment Disclosure [Text Block]</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_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="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="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="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/documentation">March two thousand twenty three private placement.</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/documentation">Operating lease 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/terseLabel">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/documentation">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/terseLabel">Common stock warrant and option liabilities</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_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_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_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/verboseLabel">Expected term</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_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="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/label">March Two Thousand Twenty Three 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="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="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="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="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/terseLabel">Contingent Liabilities [Member]</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_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_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="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional Paid-In Capital [Member]</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_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/terseLabel">Preferred investment options liability, 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/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="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="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="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="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="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="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="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="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_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/totalLabel">Amortized Cost</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/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="dei_AddressTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Address Type [Domain]</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/documentation">May 2020 warrants.</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/terseLabel">May 2020 Warrants [Member]</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="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/terseLabel">Warrant, 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/label">Machinery and Equipment [Member]</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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, Employee Stock Purchase Plans</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issuance of common stock pursuant to employee stock purchase plan</link:label>
          <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 shares related to employee stock purchase plan, Shares</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/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_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_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/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/label">Gain from sale of patent portfolio</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 RS durum wheat trait</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/label">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/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/terseLabel">Accounts receivable and other receivables, net of allowance for credit losses of $559 and $0 as of September 30, 2025 and December 31, 2024, respectively</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_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/verboseLabel">Maximum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressesAddressTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Addresses, Address Type [Axis]</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="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="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 September 30, 2025 and December 31, 2024; 1,367,429 and 1,364,940 shares issued and outstanding as of September 30, 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/label">Equity, Including Portion Attributable to Noncontrolling Interest</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/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/totalLabel">Total stockholders' equity</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="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="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/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="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="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/totalLabel">Income (Loss) from Continuing Operations, Per Diluted Share, Total</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 income (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_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_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_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_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_FiniteLivedIntangibleAssetsByMajorClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Finite-Lived Intangible Assets by Major Class</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_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_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_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_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_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="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="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="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">Entity Registrant Name</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>
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          <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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Asset, Expected Amortization, Year Two</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2024</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/totalLabel">Other Nonoperating Income (Expense), Total</link:label>
          <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</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/label">Accounts Payable and Accrued Liabilities, Current</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/totalLabel">Accounts Payable and Accrued Liabilities, Current, Total</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/verboseLabel">Amortization expense</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="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_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Finite-Lived Intangible Asset, Expected Amortization, Year Three</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeptemberTwoThousandAndNineteenOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">September two thousand and nineteen offering.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeptemberTwoThousandAndNineteenOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">September Two Thousand And Nineteen Offering [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_SeptemberTwoThousandAndNineteenOfferingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">September 2019 Offering [Member]</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/label">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="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_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_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="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="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="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Entity Common Stock, Shares Outstanding</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_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_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/documentation">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/terseLabel">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">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/verboseLabel">Issuance of shares related to Pre-Funded Warrants exercise</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">Exercised during the period</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/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/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/label">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/totalLabel">Total assets</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="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="rkda_ReverseStockSplitPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reverse Stock Split</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ReverseStockSplitPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reverse Stock Split Policy [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_ReverseStockSplitPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Reverse stock split policy policy text block.</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/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/2003/role/terseLabel">Other SG&amp;A</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="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/verboseLabel">SG&amp;A Expenses [Member]</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/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/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="rkda_IntellectualPropertyAndCustomerListsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Intellectual property and customer lists.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IntellectualPropertyAndCustomerListsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intellectual Property And Customer Lists [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_IntellectualPropertyAndCustomerListsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Intellectual Property and Customer Lists [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDilutedAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income (loss) per share - Diluted</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDilutedAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Diluted [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/verboseLabel">Net income (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/terseLabel">Diluted net (loss) income per 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 income (loss) per diluted share attributable to common stockholders</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="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="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="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="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/terseLabel">Discontinued operations, 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/label">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/terseLabel">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/terseLabel">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/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_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="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/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_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="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="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_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/terseLabel">Series B Preferred Investment Options [Member]</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="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="us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Employee Stock Purchase Plan</link:label>
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          <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>
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          <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>
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          <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>
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          <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_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment, Net</link:label>
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          <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/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="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation</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/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/periodStartLabel">Cash and cash equivalents - beginning 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/periodEndLabel">Cash and cash equivalents - end of period</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Income (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Loss from operations</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_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated Deficit [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>
          <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/terseLabel">June 2019 Warrants [Member]</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/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/terseLabel">Stock-based compensation</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="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_MeasurementInputPriceVolatilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">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/verboseLabel">Expected 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/label">Payments of Stock Issuance Costs</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/terseLabel">Additional offering costs</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>
          <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/verboseLabel">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="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="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_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="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="rkda_ScheduleOfPropertyPlantAndEquipmentTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Property Plant And Equipment Table [Text Block]</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>
          <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="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_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_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_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, adopted [true false]</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/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="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="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/documentation">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/terseLabel">Commitments And Contingencies [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareReconciliationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share Reconciliation [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareReconciliationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income (loss) per share attributable to common stockholders:</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_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_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_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/label">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/terseLabel">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/documentation">Preferred investment options liability measured remaining term.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_PreferredInvestmentOptionsLiabilityMeasuredRemainingTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Investment Options Liability Measured Remaining Term</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>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Income Location, Balance [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Statement Location</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandAndEighteenPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">March 2018 purchase agreement.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandAndEighteenPurchaseAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">March Two Thousand And Eighteen Purchase Agreement [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="rkda_MarchTwoThousandAndEighteenPurchaseAgreementMember_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_PreferredInvestmentOptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Preferred investment options.</link:label>
          <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/terseLabel">Preferred Investment Options [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Operating activities</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">CASH FLOWS FROM OPERATING ACTIVITIES:</link:label>
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          <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>
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          <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>
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          <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>
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  <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_ChangeInFairValueOfCommonStockWarrantAndOptionLiabilities" name="ChangeInFairValueOfCommonStockWarrantAndOptionLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <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_ProceedsFromSaleOfRSDurumWheatTrait" name="ProceedsFromSaleOfRSDurumWheatTrait" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_PreferredInvestmentOptionsLiabilityIssuanceMonthAndYear" name="PreferredInvestmentOptionsLiabilityIssuanceMonthAndYear" type="xbrli:gYearMonthItemType" 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_EntityReincorporationDateOfReincorporation" name="EntityReincorporationDateOfReincorporation" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_CoPackingBusinessSaavyNaturalsProvaultAndSoulSpringBodyCareBrandsMember" name="CoPackingBusinessSaavyNaturalsProvaultAndSoulSpringBodyCareBrandsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <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_FirstOfferingPeriodEndDate" name="FirstOfferingPeriodEndDate" type="xbrli:dateItemType" 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_May2020PlacementAgentWarrantsMember" name="May2020PlacementAgentWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <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_ContractualAgreementMonthAndYear" name="ContractualAgreementMonthAndYear" type="xbrli:gYearMonthItemType" 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_CollaborativeArrangementsCopromotionMember" name="CollaborativeArrangementsCopromotionMember" type="dtr-types:domainItemType" 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_MarchTwoThousandTwentyThreePlacementAgentOptionsMember" name="MarchTwoThousandTwentyThreePlacementAgentOptionsMember" 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_MarchTwoThousandTwentyThreePreFundedWarrantsMember" name="MarchTwoThousandTwentyThreePreFundedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_OperatingLeaseLiabilitiesAbstract" name="OperatingLeaseLiabilitiesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <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_MarchTwoThousandTwentyThreeOptionsSeriesAMember" name="MarchTwoThousandTwentyThreeOptionsSeriesAMember" 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_MarchTwoThousandTwentyThreePrivatePlacementMember" name="MarchTwoThousandTwentyThreePrivatePlacementMember" 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_StockIssuedDuringPeriodSharesRelatedToExerciseOfOptions" name="StockIssuedDuringPeriodSharesRelatedToExerciseOfOptions" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <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_InventoryRawMaterialsCurrentAndNonCurrent" name="InventoryRawMaterialsCurrentAndNonCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <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_March2023AndAugust2022OptionsAndPlacementAgentOptionsMember" name="March2023AndAugust2022OptionsAndPlacementAgentOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <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_EntityPlaceOfIncorporation" name="EntityPlaceOfIncorporation" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <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_WarrantLiabilities" name="WarrantLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_PreFundedWarrantsMember" name="PreFundedWarrantsMember" 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_OctoberTwoThousandAndTwentyTwoServiceAndPerformanceWarrantsMember" name="OctoberTwoThousandAndTwentyTwoServiceAndPerformanceWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <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_May2020WarrantsPrivatePlacementOfferingMember" name="May2020WarrantsPrivatePlacementOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <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_InducementStockOptionMember" name="InducementStockOptionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <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_ScheduleOfOperatingLeaseTableTextBlock" name="ScheduleOfOperatingLeaseTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_NumberOfSharesIssuable" name="NumberOfSharesIssuable" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <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_JuneTwoThousandNineteenWarrantsMember" name="JuneTwoThousandNineteenWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_OptionsExpirationPeriod" name="OptionsExpirationPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <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_OtherAdjustments" name="OtherAdjustments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_IntellectualPropertyAndCustomerListsMember" name="IntellectualPropertyAndCustomerListsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <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_BasisOfPresentationAndPrinciplesOfConsolidationPolicyPolicyTextBlock" name="BasisOfPresentationAndPrinciplesOfConsolidationPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_InvestmentsAndFairValueInstrumentsAbstract" name="InvestmentsAndFairValueInstrumentsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_NumberOfEquityIncentivePlans" name="NumberOfEquityIncentivePlans" type="xbrli:integerItemType" 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_DisposalGroupIncludingDiscontinuedOperationGainLossOnSaleOfPropertyAndEquipment" name="DisposalGroupIncludingDiscontinuedOperationGainLossOnSaleOfPropertyAndEquipment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_InvestmentsAndFairValueOfInstrumentsDisclosureTextBlock" name="InvestmentsAndFairValueOfInstrumentsDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <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_PreferredInvestmentOptionsLiabilityTerm" name="PreferredInvestmentOptionsLiabilityTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" 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_HumanCapitalAndTechnology" name="HumanCapitalAndTechnology" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_ReverseStockSplitPolicyPolicyTextBlock" name="ReverseStockSplitPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <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_DiscountedPromissoryNote" name="DiscountedPromissoryNote" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_AnawahIncMember" name="AnawahIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_FirstOfferingPeriodStartDate" name="FirstOfferingPeriodStartDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <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_JanuaryTwoThousandTwentyOneWarrantsMember" name="JanuaryTwoThousandTwentyOneWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <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_JohnSperlingFoundationMember" name="JohnSperlingFoundationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_MarchTwoThousandEighteenOfferingMember" name="MarchTwoThousandEighteenOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_OffsetAdvertisingAndMarketingExpense" name="OffsetAdvertisingAndMarketingExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_SeriesAAndBPreferredInvestmentOptionsMember" name="SeriesAAndBPreferredInvestmentOptionsMember" 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_EntityIncorporationYearOfIncorporation" name="EntityIncorporationYearOfIncorporation" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_ExchangeAgreementTerminationDate" name="ExchangeAgreementTerminationDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_NumberOfTechnologyDevelopmentPrograms" name="NumberOfTechnologyDevelopmentPrograms" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_ClassOfWarrantOrRightExercisableTerm" name="ClassOfWarrantOrRightExercisableTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_DisclosureOfCompensationRelatedCostsShareBasedPaymentsAndWarrantsAbstract" name="DisclosureOfCompensationRelatedCostsShareBasedPaymentsAndWarrantsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_NoteReceivableRecognizedFromSaleOfGoodWheat" name="NoteReceivableRecognizedFromSaleOfGoodWheat" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <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_PreferredInvestmentOptionsLiabilityOutstanding" name="PreferredInvestmentOptionsLiabilityOutstanding" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="rkda_PreferredInvestmentOptionsLiabilityMember" name="PreferredInvestmentOptionsLiabilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <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_CommitmentsAndContingenciesLineItems" name="CommitmentsAndContingenciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_DepreciationContinuingAndDiscontinuedOperations" name="DepreciationContinuingAndDiscontinuedOperations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_DebtAndEquitySecuritiesCurrent" name="DebtAndEquitySecuritiesCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_FairValueMeasurementInitialRecognition" name="FairValueMeasurementInitialRecognition" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_SeptemberTwoThousandAndNineteenOfferingMember" name="SeptemberTwoThousandAndNineteenOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <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_SeptemberTwoThousandNineteenWarrantsMember" name="SeptemberTwoThousandNineteenWarrantsMember" 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_TwoThousandFifteenOmnibusEquityIncentivePlanMember" name="TwoThousandFifteenOmnibusEquityIncentivePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <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_OrganizationPolicyPolicyTextBlock" name="OrganizationPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <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_PreferredInvestmentOptionsLiabilityOutstandingMeasurementInput" name="PreferredInvestmentOptionsLiabilityOutstandingMeasurementInput" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <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_MarchTwoThousandTwentyThreeOptionsMember" name="MarchTwoThousandTwentyThreeOptionsMember" 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_PropertyPlantAndEquipmentNetIncludingDiscontinuedOperations" name="PropertyPlantAndEquipmentNetIncludingDiscontinuedOperations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_NoteReceivableBifurcatedDerivativesMember" name="NoteReceivableBifurcatedDerivativesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_IssuanceCostsAllocatedToLiabilityPreferredOptions" name="IssuanceCostsAllocatedToLiabilityPreferredOptions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <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_FairValueOfCommonStockAndPreFundedWarrants" name="FairValueOfCommonStockAndPreFundedWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="rkda_EntityReincorporationStateCountryName" name="EntityReincorporationStateCountryName" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_JanuaryTwoThousandTwentyOneWarrantsPrivatePlacementOfferingMember" name="JanuaryTwoThousandTwentyOneWarrantsPrivatePlacementOfferingMember" 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_WarrantsExpirationPeriod" name="WarrantsExpirationPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <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_OfferingClosingPeriod" name="OfferingClosingPeriod" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <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_AugustTwoThousandAndTwentyTwoPurchaseAgreementMember" name="AugustTwoThousandAndTwentyTwoPurchaseAgreementMember" 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_StockIssuedDuringPeriodSharesRelatedToExerciseOfWarrants" name="StockIssuedDuringPeriodSharesRelatedToExerciseOfWarrants" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="rkda_JanuaryTwoThousandAndTwentyOneOfferingMember" name="JanuaryTwoThousandAndTwentyOneOfferingMember" 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_OperatingLeaseTermAndDiscountRateAbstract" name="OperatingLeaseTermAndDiscountRateAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_CommonStockWarrantLiabilityMember" name="CommonStockWarrantLiabilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <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_DecemberTwoThousandTwentyWarrantsPrivatePlacementOfferingMember" name="DecemberTwoThousandTwentyWarrantsPrivatePlacementOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="rkda_EstimatedFairValueOptionsExceededGrossProceeds" name="EstimatedFairValueOptionsExceededGrossProceeds" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="rkda_ClassOfWarrantsOrRightsIssuanceMonthAndYear" name="ClassOfWarrantsOrRightsIssuanceMonthAndYear" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" 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_MarchTwoThousandTwentyThreeOptionsSeriesAAndMarchTwoThousandTwentyThreePlacementAgentOptionsMember" name="MarchTwoThousandTwentyThreeOptionsSeriesAAndMarchTwoThousandTwentyThreePlacementAgentOptionsMember" 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_SummaryOfAmortizedCostAndFairValueOfInvestmentSecuritiesTableTextBlock" name="SummaryOfAmortizedCostAndFairValueOfInvestmentSecuritiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <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_PromissoryNotePrincipalReceviableEachYear" name="PromissoryNotePrincipalReceviableEachYear" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <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_PreferredInvestmentOptionsLiabilityExercisePricePerShare" name="PreferredInvestmentOptionsLiabilityExercisePricePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="rkda_MarchTwoThousandAndEighteenPurchaseAgreementMember" name="MarchTwoThousandAndEighteenPurchaseAgreementMember" 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_CommitmentsAndContingenciesTable" name="CommitmentsAndContingenciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" 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_OperatingLeaseAssetsAbstract" name="OperatingLeaseAssetsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <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_MarchTwoThousandTwentyThreeSecuritiesPurchasePurchaseAgreementMember" name="MarchTwoThousandTwentyThreeSecuritiesPurchasePurchaseAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <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_FairValueOfAboveFoodIngredientsIncCommonStockReceived" name="FairValueOfAboveFoodIngredientsIncCommonStockReceived" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <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_InventoryCurrentAndNonCurrentNet" name="InventoryCurrentAndNonCurrentNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <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_ArcadiaBiosciencesIncorporationMember" name="ArcadiaBiosciencesIncorporationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <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_ProductCostOfGoodsSold" name="ProductCostOfGoodsSold" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
</xsd:schema>
