3.22.2 html 96 174 1 false 25 0 false 5 false false R1.htm 100000 - Document - Document and Entity Information Sheet http://kodiak.com/20220630/taxonomy/role/Role_DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 100010 - Statement - Condensed Consolidated Balance Sheets (unaudited) Sheet http://kodiak.com/20220630/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsUnaudited Condensed Consolidated Balance Sheets (unaudited) Statements 2 false false R3.htm 100020 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) (unaudited) Sheet http://kodiak.com/20220630/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParentheticalUnaudited Condensed Consolidated Balance Sheets (Parenthetical) (unaudited) Statements 3 false false R4.htm 100030 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited) Sheet http://kodiak.com/20220630/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLossUnaudited Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited) Statements 4 false false R5.htm 100040 - Statement - Condensed Consolidated Statements of Stockholders' Equity Sheet http://kodiak.com/20220630/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity Condensed Consolidated Statements of Stockholders' Equity Statements 5 false false R6.htm 100050 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) Sheet http://kodiak.com/20220630/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited Condensed Consolidated Statements of Cash Flows (Unaudited) Statements 6 false false R7.htm 100060 - Disclosure - The Company Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureTheCompany The Company Notes 7 false false R8.htm 100070 - Disclosure - Summary of Significant Accounting Policies Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 8 false false R9.htm 100080 - Disclosure - Accrued and Other Current Liabilities Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureAccruedAndOtherCurrentLiabilities Accrued and Other Current Liabilities Notes 9 false false R10.htm 100090 - Disclosure - Fair Value Measurements Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureFairValueMeasurements Fair Value Measurements Notes 10 false false R11.htm 100100 - Disclosure - Marketable Securities Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureMarketableSecurities Marketable Securities Notes 11 false false R12.htm 100110 - Disclosure - Commitments and Contingencies Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureCommitmentsAndContingencies Commitments and Contingencies Notes 12 false false R13.htm 100120 - Disclosure - Stock-Based Compensation Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureStockBasedCompensation Stock-Based Compensation Notes 13 false false R14.htm 100130 - Disclosure - Net Loss per Common Share Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureNetLossPerCommonShare Net Loss per Common Share Notes 14 false false R15.htm 100140 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://kodiak.com/20220630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies 15 false false R16.htm 100150 - Disclosure - Accrued and Other Current Liabilities (Tables) Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureAccruedAndOtherCurrentLiabilitiesTables Accrued and Other Current Liabilities (Tables) Tables http://kodiak.com/20220630/taxonomy/role/Role_DisclosureAccruedAndOtherCurrentLiabilities 16 false false R17.htm 100160 - Disclosure - Fair Value Measurements (Tables) Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureFairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://kodiak.com/20220630/taxonomy/role/Role_DisclosureFairValueMeasurements 17 false false R18.htm 100170 - Disclosure - Marketable Securities (Tables) Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureMarketableSecuritiesTables Marketable Securities (Tables) Tables http://kodiak.com/20220630/taxonomy/role/Role_DisclosureMarketableSecurities 18 false false R19.htm 100180 - Disclosure - Stock-Based Compensation (Tables) Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureStockBasedCompensationTables Stock-Based Compensation (Tables) Tables http://kodiak.com/20220630/taxonomy/role/Role_DisclosureStockBasedCompensation 19 false false R20.htm 100190 - Disclosure - Net Loss per Common Share (Tables) Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureNetLossPerCommonShareTables Net Loss per Common Share (Tables) Tables http://kodiak.com/20220630/taxonomy/role/Role_DisclosureNetLossPerCommonShare 20 false false R21.htm 100200 - Disclosure - The Company - Additional Information (Details) Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureTheCompanyAdditionalInformationDetails The Company - Additional Information (Details) Details 21 false false R22.htm 100210 - Disclosure - Accrued and Other Current Liabilities - Schedule of Accrued and Other Current Liabilities (Details) Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureAccruedAndOtherCurrentLiabilitiesScheduleOfAccruedAndOtherCurrentLiabilitiesDetails Accrued and Other Current Liabilities - Schedule of Accrued and Other Current Liabilities (Details) Details 22 false false R23.htm 100220 - Disclosure - Fair Value Measurements - Summary of Fair Value Hierarchy for Assets Measured at Fair Value on Recurring Basis (Details) Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureFairValueMeasurementsSummaryOfFairValueHierarchyForAssetsMeasuredAtFairValueOnRecurringBasisDetails Fair Value Measurements - Summary of Fair Value Hierarchy for Assets Measured at Fair Value on Recurring Basis (Details) Details 23 false false R24.htm 100230 - Disclosure - Marketable Securities - Summary of Marketable Securities (Details) Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureMarketableSecuritiesSummaryOfMarketableSecuritiesDetails Marketable Securities - Summary of Marketable Securities (Details) Details 24 false false R25.htm 100240 - Disclosure - Marketable Securities - Additional Information (Details) Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureMarketableSecuritiesAdditionalInformationDetails Marketable Securities - Additional Information (Details) Details 25 false false R26.htm 100250 - Disclosure - Commitments and Contingencies - Additional Information (Details) Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetails Commitments and Contingencies - Additional Information (Details) Details 26 false false R27.htm 100260 - Disclosure - Stock-Based Compensation - Additional Information (Details) Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetails Stock-Based Compensation - Additional Information (Details) Details 27 false false R28.htm 100270 - Disclosure - Stock-Based Compensation - Summary of Stock Options Activity Under 2018 Plan and 2015 Equity Incentive Plan (Details) Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureStockBasedCompensationSummaryOfStockOptionsActivityUnder2018PlanAnd2015EquityIncentivePlanDetails Stock-Based Compensation - Summary of Stock Options Activity Under 2018 Plan and 2015 Equity Incentive Plan (Details) Details 28 false false R29.htm 100280 - Disclosure - Stock-Based Compensation - Summary of Restricted Shares (Details) Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureStockBasedCompensationSummaryOfRestrictedSharesDetails Stock-Based Compensation - Summary of Restricted Shares (Details) Details 29 false false R30.htm 100290 - Disclosure - Stock-Based Compensation - Summary of Stock-based Compensation for Options and Restricted Shares Classified in Condensed Consolidated Statements of Operations and Comprehensive Loss (Details) Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureStockBasedCompensationSummaryOfStockBasedCompensationForOptionsAndRestrictedSharesClassifiedInCondensedConsolidatedStatementsOfOperationsAndComprehensiveLossDetails Stock-Based Compensation - Summary of Stock-based Compensation for Options and Restricted Shares Classified in Condensed Consolidated Statements of Operations and Comprehensive Loss (Details) Details 30 false false R31.htm 100300 - Disclosure - Net Loss per Common Share - Summary of Anti-dilutive Securities Excluded from Computation of Diluted Net Loss per Common Share (Details) Sheet http://kodiak.com/20220630/taxonomy/role/Role_DisclosureNetLossPerCommonShareSummaryOfAntiDilutiveSecuritiesExcludedFromComputationOfDilutedNetLossPerCommonShareDetails Net Loss per Common Share - Summary of Anti-dilutive Securities Excluded from Computation of Diluted Net Loss per Common Share (Details) Details 31 false false R32.htm 100310 - Disclosure - Subsequent Events - Additional Information (Details) Sheet http://kodiak.com/20220630/taxonomy/role/DisclosureSubsequentEventsAdditionalInformationDetails Subsequent Events - Additional Information (Details) Details 32 false false All Reports Book All Reports kod-20220630.htm kod-20220630.xsd kod-20220630_cal.xml kod-20220630_def.xml kod-20220630_lab.xml kod-20220630_pre.xml kod-ex31_1.htm kod-ex31_2.htm kod-ex32_1.htm kod-ex32_2.htm http://fasb.org/us-gaap/2022 http://xbrl.sec.gov/dei/2022 true true