3.24.3 html 420 325 1 false 104 0 false 7 false false R1.htm 100000 - Document - Document and Entity Information Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 100010 - Statement - Condensed Consolidated Balance Sheets (Unaudited) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsUnaudited Condensed Consolidated Balance Sheets (Unaudited) Statements 2 false false R3.htm 100030 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParentheticalUnaudited Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) Statements 3 false false R4.htm 100060 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) Sheet http://arcadiabio.com/20240930/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLossUnaudited Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) Statements 4 false false R5.htm 100080 - Statement - Condensed Consolidated Statements of Stockholders' Equity (Unaudited) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquityUnaudited Condensed Consolidated Statements of Stockholders' Equity (Unaudited) Statements 5 false false R6.htm 100090 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited Condensed Consolidated Statements of Cash Flows (Unaudited) Statements 6 false false R7.htm 995410 - Disclosure - Pay vs Performance Disclosure Sheet http://xbrl.sec.gov/ecd/role/PvpDisclosure Pay vs Performance Disclosure Notes 7 false false R8.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 8 false false R9.htm 995455 - Disclosure - Description of Business and Basis of Presentation Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureDescriptionOfBusinessAndBasisOfPresentation Description of Business and Basis of Presentation Notes 9 false false R10.htm 995465 - Disclosure - Recent Accounting Pronouncements Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureRecentAccountingPronouncements Recent Accounting Pronouncements Notes 10 false false R11.htm 995475 - Disclosure - Inventory Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureInventory Inventory Notes 11 false false R12.htm 995485 - Disclosure - Property and Equipment, Net Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosurePropertyAndEquipmentNet Property and Equipment, Net Notes 12 false false R13.htm 995495 - Disclosure - Investments and Fair Value Instruments Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureInvestmentsAndFairValueInstruments Investments and Fair Value Instruments Notes 13 false false R14.htm 995505 - Disclosure - Note Receivable Sheet http://arcadiabio.com/20240930/taxonomy/role/DisclosureNoteReceivable Note Receivable Notes 14 false false R15.htm 995515 - Disclosure - Consolidated Joint Venture Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureConsolidatedJointVenture Consolidated Joint Venture Notes 15 false false R16.htm 995525 - Disclosure - Collaborative Arrangements Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureCollaborativeArrangements Collaborative Arrangements Notes 16 false false R17.htm 995535 - Disclosure - Leases Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureLeases Leases Notes 17 false false R18.htm 995545 - Disclosure - Equity Financing Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureEquityFinancing Equity Financing Notes 18 false false R19.htm 995555 - Disclosure - Warrants and Options Sheet http://arcadiabio.com/20240930/taxonomy/role/DisclosureWarrantsAndOptions Warrants and Options Notes 19 false false R20.htm 995565 - Disclosure - Stock-Based Compensation and Employee Stock Purchase Program Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureStockBasedCompensationAndEmployeeStockPurchaseProgram Stock-Based Compensation and Employee Stock Purchase Program Notes 20 false false R21.htm 995575 - Disclosure - Income Taxes Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureIncomeTaxes Income Taxes Notes 21 false false R22.htm 995585 - Disclosure - Commitment and Contingencies Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureCommitmentAndContingencies Commitment and Contingencies Notes 22 false false R23.htm 995595 - Disclosure - Net Loss per Share Sheet http://arcadiabio.com/20240930/taxonomy/role/DisclosureNetLossPerShare Net Loss per Share Notes 23 false false R24.htm 995605 - Disclosure - Related-Party Transactions Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureRelatedPartyTransactions Related-Party Transactions Notes 24 false false R25.htm 995625 - Disclosure - Description of Business and Basis of Presentation (Policies) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureDescriptionOfBusinessAndBasisOfPresentationPolicies Description of Business and Basis of Presentation (Policies) Policies http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureRecentAccountingPronouncements 25 false false R26.htm 995635 - Disclosure - Description of Business and Basis of Presentation (Tables) Sheet http://arcadiabio.com/20240930/taxonomy/role/DisclosureDescriptionOfBusinessAndBasisOfPresentationTables Description of Business and Basis of Presentation (Tables) Tables http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureDescriptionOfBusinessAndBasisOfPresentation 26 false false R27.htm 995645 - Disclosure - Inventory (Tables) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureInventoryTables Inventory (Tables) Tables http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureInventory 27 false false R28.htm 995655 - Disclosure - Property and Equipment, Net (Tables) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosurePropertyAndEquipmentNetTables Property and Equipment, Net (Tables) Tables http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosurePropertyAndEquipmentNet 28 false false R29.htm 995665 - Disclosure - Investments and Fair Value Instruments (Tables) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureInvestmentsAndFairValueInstrumentsTables Investments and Fair Value Instruments (Tables) Tables http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureInvestmentsAndFairValueInstruments 29 false false R30.htm 995675 - Disclosure - Leases (Tables) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureLeasesTables Leases (Tables) Tables http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureLeases 30 false false R31.htm 995685 - Disclosure - Warrants and Options (Tables) Sheet http://arcadiabio.com/20240930/taxonomy/role/DisclosureWarrantsAndOptionsTables Warrants and Options (Tables) Tables http://arcadiabio.com/20240930/taxonomy/role/DisclosureWarrantsAndOptions 31 false false R32.htm 995695 - Disclosure - Stock-Based Compensation and Employee Stock Purchase Program (Tables) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureStockBasedCompensationAndEmployeeStockPurchaseProgramTables Stock-Based Compensation and Employee Stock Purchase Program (Tables) Tables http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureStockBasedCompensationAndEmployeeStockPurchaseProgram 32 false false R33.htm 995705 - Disclosure - Net Loss per Share (Tables) Sheet http://arcadiabio.com/20240930/taxonomy/role/DisclosureNetLossPerShareTables Net Loss per Share (Tables) Tables http://arcadiabio.com/20240930/taxonomy/role/DisclosureNetLossPerShare 33 false false R34.htm 995715 - Disclosure - Description of Business and Basis of Presentation - Additional Information (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureDescriptionOfBusinessAndBasisOfPresentationAdditionalInformationDetail Description of Business and Basis of Presentation - Additional Information (Detail) Details 34 false false R35.htm 995725 - Disclosure - Description of Business - Summary of Major Classes of Line Items Constituting the Balance Sheet on Discontinued Operations (Details) Sheet http://arcadiabio.com/20240930/taxonomy/role/DisclosureDescriptionOfBusinessSummaryOfMajorClassesOfLineItemsConstitutingTheBalanceSheetOnDiscontinuedOperationsDetails Description of Business - Summary of Major Classes of Line Items Constituting the Balance Sheet on Discontinued Operations (Details) Details 35 false false R36.htm 995735 - Disclosure - Description of Business and Basis of Presentation - Summary of Major Classes of Line Items Constituting Net Loss from Discontinued Operations (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/DisclosureDescriptionOfBusinessAndBasisOfPresentationSummaryOfMajorClassesOfLineItemsConstitutingNetLossFromDiscontinuedOperationsDetail Description of Business and Basis of Presentation - Summary of Major Classes of Line Items Constituting Net Loss from Discontinued Operations (Detail) Details 36 false false R37.htm 995745 - Disclosure - Description of Business and Basis of Presentation - Non-cash Items of Discontinued Operations (Details) Sheet http://arcadiabio.com/20240930/taxonomy/role/DisclosureDescriptionOfBusinessAndBasisOfPresentationNoncashItemsOfDiscontinuedOperationsDetails Description of Business and Basis of Presentation - Non-cash Items of Discontinued Operations (Details) Details 37 false false R38.htm 995755 - Disclosure - Inventory - Additional Information (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureInventoryAdditionalInformationDetail Inventory - Additional Information (Detail) Details 38 false false R39.htm 995765 - Disclosure - Inventory - Summary of Inventories (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureInventorySummaryOfInventoriesDetail Inventory - Summary of Inventories (Detail) Details 39 false false R40.htm 995775 - Disclosure - Property and Equipment, Net - Summary of Property and Equipment, Net (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosurePropertyAndEquipmentNetSummaryOfPropertyAndEquipmentNetDetail Property and Equipment, Net - Summary of Property and Equipment, Net (Detail) Details 40 false false R41.htm 995785 - Disclosure - Property and Equipment, Net - Additional Information (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosurePropertyAndEquipmentNetAdditionalInformationDetail Property and Equipment, Net - Additional Information (Detail) Details 41 false false R42.htm 995795 - Disclosure - Investments and Fair Value Instruments - Summary of Amortized Cost and Fair Value of Investment Securities Portfolio (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureInvestmentsAndFairValueInstrumentsSummaryOfAmortizedCostAndFairValueOfInvestmentSecuritiesPortfolioDetail Investments and Fair Value Instruments - Summary of Amortized Cost and Fair Value of Investment Securities Portfolio (Detail) Details 42 false false R43.htm 995805 - Disclosure - Investments and Fair Value Instruments - Additional Information (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureInvestmentsAndFairValueInstrumentsAdditionalInformationDetail Investments and Fair Value Instruments - Additional Information (Detail) Details 43 false false R44.htm 995815 - Disclosure - Investments and Fair Value Instruments - Summary of Fair Value of Investments Securities (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureInvestmentsAndFairValueInstrumentsSummaryOfFairValueOfInvestmentsSecuritiesDetail Investments and Fair Value Instruments - Summary of Fair Value of Investments Securities (Detail) Details 44 false false R45.htm 995825 - Disclosure - Investments and Fair Value Instruments - Summary of Preferred Investment Option Liabilities Measured and Recorded on Recurring Basis using Black-Scholes Model (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/DisclosureInvestmentsAndFairValueInstrumentsSummaryOfPreferredInvestmentOptionLiabilitiesMeasuredAndRecordedOnRecurringBasisUsingBlackschol Investments and Fair Value Instruments - Summary of Preferred Investment Option Liabilities Measured and Recorded on Recurring Basis using Black-Scholes Model (Detail) Details 45 false false R46.htm 995835 - Disclosure - Investments and Fair Value Instruments - Summary of Changes in Fair Value and Other Adjustments of Assets and Liabilities (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/DisclosureInvestmentsAndFairValueInstrumentsSummaryOfChangesInFairValueAndOtherAdjustmentsOfAssetsAndLiabilitiesDetail Investments and Fair Value Instruments - Summary of Changes in Fair Value and Other Adjustments of Assets and Liabilities (Detail) Details 46 false false R47.htm 995845 - Disclosure - Note Receivable - Additional Information (Details) Sheet http://arcadiabio.com/20240930/taxonomy/role/DisclosureNoteReceivableAdditionalInformationDetails Note Receivable - Additional Information (Details) Details 47 false false R48.htm 995855 - Disclosure - Consolidated Joint Venture - Additional Information (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureConsolidatedJointVentureAdditionalInformationDetail Consolidated Joint Venture - Additional Information (Detail) Details 48 false false R49.htm 995865 - Disclosure - Collaborative Arrangements - Additional Information (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureCollaborativeArrangementsAdditionalInformationDetail Collaborative Arrangements - Additional Information (Detail) Details 49 false false R50.htm 995875 - Disclosure - Leases - Additional Information (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureLeasesAdditionalInformationDetail Leases - Additional Information (Detail) Details 50 false false R51.htm 995885 - Disclosure - Leases - Schedule of Leases (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureLeasesScheduleOfLeasesDetail Leases - Schedule of Leases (Detail) Details 51 false false R52.htm 995905 - Disclosure - Equity Financing - Additional Information (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureEquityFinancingAdditionalInformationDetail Equity Financing - Additional Information (Detail) Details 52 false false R53.htm 995915 - Disclosure - Warrants and Options - Summary of Warrants Issued to Purchase Common Stock (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/DisclosureWarrantsAndOptionsSummaryOfWarrantsIssuedToPurchaseCommonStockDetail Warrants and Options - Summary of Warrants Issued to Purchase Common Stock (Detail) Details 53 false false R54.htm 995935 - Disclosure - Warrants and Options - Summary of Key Terms and Activity of Liability Classified Preferred Investment Options (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/DisclosureWarrantsAndOptionsSummaryOfKeyTermsAndActivityOfLiabilityClassifiedPreferredInvestmentOptionsDetail Warrants and Options - Summary of Key Terms and Activity of Liability Classified Preferred Investment Options (Detail) Details 54 false false R55.htm 995945 - Disclosure - Stock-Based Compensation and Employee Stock Purchase Program - Additional Information (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureStockBasedCompensationAndEmployeeStockPurchaseProgramAdditionalInformationDetail Stock-Based Compensation and Employee Stock Purchase Program - Additional Information (Detail) Details 55 false false R56.htm 995955 - Disclosure - Stock-Based Compensation and Employee Stock Purchase Program - Summary of Activity Under Stock Incentive Plans (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureStockBasedCompensationAndEmployeeStockPurchaseProgramSummaryOfActivityUnderStockIncentivePlansDetail Stock-Based Compensation and Employee Stock Purchase Program - Summary of Activity Under Stock Incentive Plans (Detail) Details 56 false false R57.htm 995965 - Disclosure - Stock-Based Compensation and Employee Stock Purchase Program - Weighted-Average Fair Value Assumption of Stock Option Awards (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureStockBasedCompensationAndEmployeeStockPurchaseProgramWeightedAverageFairValueAssumptionOfStockOptionAwardsDetail Stock-Based Compensation and Employee Stock Purchase Program - Weighted-Average Fair Value Assumption of Stock Option Awards (Detail) Details 57 false false R58.htm 995975 - Disclosure - Income Taxes - Additional Information (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureIncomeTaxesAdditionalInformationDetail Income Taxes - Additional Information (Detail) Details 58 false false R59.htm 995985 - Disclosure - Commitments and Contingencies - Additional Information (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail Commitments and Contingencies - Additional Information (Detail) Details 59 false false R60.htm 995995 - Disclosure - Net Loss per Share - Summary of Securities Not Included in Diluted Per Share Calculations (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/DisclosureNetLossPerShareSummaryOfSecuritiesNotIncludedInDilutedPerShareCalculationsDetail Net Loss per Share - Summary of Securities Not Included in Diluted Per Share Calculations (Detail) Details 60 false false R61.htm 996005 - Disclosure - Related-Party Transactions - Additional Information (Detail) Sheet http://arcadiabio.com/20240930/taxonomy/role/Role_DisclosureRelatedPartyTransactionsAdditionalInformationDetail Related-Party Transactions - Additional Information (Detail) Details 61 false false All Reports Book All Reports rkda-20240930.htm rkda-20240930.xsd http://fasb.org/us-gaap/2024 http://xbrl.sec.gov/dei/2024 http://xbrl.sec.gov/ecd/2024 false false