3.23.1 html 151 277 1 false 57 0 false 7 false false R1.htm 100000 - Document - Document And Entity Information Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DocumentDocumentAndEntityInformation Document And Entity Information Cover 1 false false R2.htm 100010 - Statement - Consolidated Balance Sheets Sheet http://vaccinex.com/20221231/taxonomy/role/Role_StatementConsolidatedBalanceSheets Consolidated Balance Sheets Statements 2 false false R3.htm 100020 - Statement - Consolidated Balance Sheets (Parenthetical) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_StatementConsolidatedBalanceSheetsParenthetical Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 100030 - Statement - Consolidated Statements of Operations and Comprehensive Loss Sheet http://vaccinex.com/20221231/taxonomy/role/Role_StatementConsolidatedStatementsOfOperationsAndComprehensiveLoss Consolidated Statements of Operations and Comprehensive Loss Statements 4 false false R5.htm 100040 - Statement - Consolidated Statements of Stockholders' Equity (Deficit) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_StatementConsolidatedStatementsOfStockholdersEquityDeficit Consolidated Statements of Stockholders' Equity (Deficit) Statements 5 false false R6.htm 100050 - Statement - Consolidated Statements of Cash Flows Sheet http://vaccinex.com/20221231/taxonomy/role/Role_StatementConsolidatedStatementsOfCashFlows Consolidated Statements of Cash Flows Statements 6 false false R7.htm 100060 - Disclosure - Company and Nature of Business Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureCompanyAndNatureOfBusiness Company and Nature of Business Notes 7 false false R8.htm 100070 - Disclosure - Summary of Significant Accounting Policies Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 8 false false R9.htm 100080 - Disclosure - Balance Sheet Components Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureBalanceSheetComponents Balance Sheet Components Notes 9 false false R10.htm 100090 - Disclosure - Fair Value of Financial Measurements Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureFairValueOfFinancialMeasurements Fair Value of Financial Measurements Notes 10 false false R11.htm 100100 - Disclosure - License and Services Agreement Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureLicenseAndServicesAgreement License and Services Agreement Notes 11 false false R12.htm 100110 - Disclosure - Collaboration Agreements Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureCollaborationAgreements Collaboration Agreements Notes 12 false false R13.htm 100120 - Disclosure - Commitments and Contingencies Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureCommitmentsAndContingencies Commitments and Contingencies Notes 13 false false R14.htm 100130 - Disclosure - Leases Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureLeases Leases Notes 14 false false R15.htm 100140 - Disclosure - Long-term Debt Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureLongTermDebt Long-term Debt Notes 15 false false R16.htm 100150 - Disclosure - Convertible Debenture Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureConvertibleDebenture Convertible Debenture Notes 16 false false R17.htm 100160 - Disclosure - Common Stock Reserved For Issuance Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureCommonStockReservedForIssuance Common Stock Reserved For Issuance Notes 17 false false R18.htm 100170 - Disclosure - Stock-Based Compensation Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureStockBasedCompensation Stock-Based Compensation Notes 18 false false R19.htm 100180 - Disclosure - Income Taxes Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureIncomeTaxes Income Taxes Notes 19 false false R20.htm 100190 - Disclosure - Net Loss Per Share Attributable to Common Stockholders Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureNetLossPerShareAttributableToCommonStockholders Net Loss Per Share Attributable to Common Stockholders Notes 20 false false R21.htm 100200 - Disclosure - Employee Benefit Plan Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureEmployeeBenefitPlan Employee Benefit Plan Notes 21 false false R22.htm 100210 - Disclosure - Related Party Transactions Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureRelatedPartyTransactions Related Party Transactions Notes 22 false false R23.htm 100220 - Disclosure - Subsequent Event Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureSubsequentEvent Subsequent Event Notes 23 false false R24.htm 100230 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies 24 false false R25.htm 100240 - Disclosure - Summary of Significant Accounting Policies (Tables) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesTables Summary of Significant Accounting Policies (Tables) Tables http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies 25 false false R26.htm 100250 - Disclosure - Balance Sheet Components (Tables) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureBalanceSheetComponentsTables Balance Sheet Components (Tables) Tables http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureBalanceSheetComponents 26 false false R27.htm 100260 - Disclosure - Fair Value of Financial Measurements (Tables) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureFairValueOfFinancialMeasurementsTables Fair Value of Financial Measurements (Tables) Tables http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureFairValueOfFinancialMeasurements 27 false false R28.htm 100270 - Disclosure - Common Stock Reserved For Issuance (Tables) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureCommonStockReservedForIssuanceTables Common Stock Reserved For Issuance (Tables) Tables http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureCommonStockReservedForIssuance 28 false false R29.htm 100280 - Disclosure - Stock-Based Compensation (Tables) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureStockBasedCompensationTables Stock-Based Compensation (Tables) Tables http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureStockBasedCompensation 29 false false R30.htm 100290 - Disclosure - Income Tax (Tables) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureIncomeTaxTables Income Tax (Tables) Tables http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureIncomeTaxes 30 false false R31.htm 100300 - Disclosure - Net Loss Per Share Attributable to Common Stockholders (Tables) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureNetLossPerShareAttributableToCommonStockholdersTables Net Loss Per Share Attributable to Common Stockholders (Tables) Tables http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureNetLossPerShareAttributableToCommonStockholders 31 false false R32.htm 100310 - Disclosure - Company and Nature of Business - Additional Information (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureCompanyAndNatureOfBusinessAdditionalInformationDetails Company and Nature of Business - Additional Information (Details) Details 32 false false R33.htm 100320 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails Summary of Significant Accounting Policies - Additional Information (Details) Details 33 false false R34.htm 100330 - Disclosure - Summary of Significant Accounting Policies - Summary of Estimated Useful Lives for Property and Equipment (Detail) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfEstimatedUsefulLivesForPropertyAndEquipmentDetail Summary of Significant Accounting Policies - Summary of Estimated Useful Lives for Property and Equipment (Detail) Details 34 false false R35.htm 100340 - Disclosure - Balance Sheet Components - Property and Equipment (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureBalanceSheetComponentsPropertyAndEquipmentDetails Balance Sheet Components - Property and Equipment (Details) Details 35 false false R36.htm 100350 - Disclosure - Balance Sheet Components - Additional Information (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureBalanceSheetComponentsAdditionalInformationDetails Balance Sheet Components - Additional Information (Details) Details 36 false false R37.htm 100360 - Disclosure - Balance Sheet Components - Schedule of Accrued Expenses (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureBalanceSheetComponentsScheduleOfAccruedExpensesDetails Balance Sheet Components - Schedule of Accrued Expenses (Details) Details 37 false false R38.htm 100370 - Disclosure - Fair Value of Financial Measurements - Summary of Fair Value of Financial Assets by Level within Fair Value Hierarchy (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureFairValueOfFinancialMeasurementsSummaryOfFairValueOfFinancialAssetsByLevelWithinFairValueHierarchyDetails Fair Value of Financial Measurements - Summary of Fair Value of Financial Assets by Level within Fair Value Hierarchy (Details) Details 38 false false R39.htm 100380 - Disclosure - Fair Value of Financial Measurements - Additional Information (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureFairValueOfFinancialMeasurementsAdditionalInformationDetails Fair Value of Financial Measurements - Additional Information (Details) Details 39 false false R40.htm 100390 - Disclosure - License and Services Agreement - Additional Information (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureLicenseAndServicesAgreementAdditionalInformationDetails License and Services Agreement - Additional Information (Details) Details 40 false false R41.htm 100400 - Disclosure - Collaboration Agreements - Additional Information (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureCollaborationAgreementsAdditionalInformationDetails Collaboration Agreements - Additional Information (Details) Details 41 false false R42.htm 100410 - Disclosure - Commitments and Contingencies - Additional Information (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetails Commitments and Contingencies - Additional Information (Details) Details 42 false false R43.htm 100420 - Disclosure - Leases - Additional Information (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureLeasesAdditionalInformationDetails Leases - Additional Information (Details) Details 43 false false R44.htm 100430 - Disclosure - Long-term Debt - Additional Information (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureLongTermDebtAdditionalInformationDetails Long-term Debt - Additional Information (Details) Details 44 false false R45.htm 100440 - Disclosure - Convertible Debenture - Additional Information (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureConvertibleDebentureAdditionalInformationDetails Convertible Debenture - Additional Information (Details) Details 45 false false R46.htm 100450 - Disclosure - Common Stock Reserved For Issuance - Common Stock Reserved For Potential Future Issuances (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureCommonStockReservedForIssuanceCommonStockReservedForPotentialFutureIssuancesDetails Common Stock Reserved For Issuance - Common Stock Reserved For Potential Future Issuances (Details) Details 46 false false R47.htm 100460 - Disclosure - Common Stock Reserved For Issuance - Additional Information (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureCommonStockReservedForIssuanceAdditionalInformationDetails Common Stock Reserved For Issuance - Additional Information (Details) Details 47 false false R48.htm 100470 - Disclosure - Stock-Based Compensation - Additional Information (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetails Stock-Based Compensation - Additional Information (Details) Details 48 false false R49.htm 100480 - Disclosure - Stock-Based Compensation - Summary of Stock Option Activity and Related Information (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureStockBasedCompensationSummaryOfStockOptionActivityAndRelatedInformationDetails Stock-Based Compensation - Summary of Stock Option Activity and Related Information (Details) Details 49 false false R50.htm 100490 - Disclosure - Stock-Based Compensation - Grant Date Fair Value of Employee Stock Options Estimated Using Black-Scholes Option-Pricing Model with Weighted-Average Assumptions (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureStockBasedCompensationGrantDateFairValueOfEmployeeStockOptionsEstimatedUsingBlackScholesOptionPricingModelWithWeightedAverageAssumptionsDetails Stock-Based Compensation - Grant Date Fair Value of Employee Stock Options Estimated Using Black-Scholes Option-Pricing Model with Weighted-Average Assumptions (Details) Details 50 false false R51.htm 100500 - Disclosure - Stock-Based Compensation - Total Stock-Based Compensation Expense Recognized in Condensed Consolidated Statements of Operations and Comprehensive Loss (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureStockBasedCompensationTotalStockBasedCompensationExpenseRecognizedInCondensedConsolidatedStatementsOfOperationsAndComprehensiveLossDetails Stock-Based Compensation - Total Stock-Based Compensation Expense Recognized in Condensed Consolidated Statements of Operations and Comprehensive Loss (Details) Details 51 false false R52.htm 100510 - Disclosure - Income Taxes - Additional Information (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureIncomeTaxesAdditionalInformationDetails Income Taxes - Additional Information (Details) Details 52 false false R53.htm 100520 - Disclosure - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureIncomeTaxesScheduleOfEffectiveIncomeTaxRateReconciliationDetails Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) Details 53 false false R54.htm 100530 - Disclosure - Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureIncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) Details 54 false false R55.htm 100540 - Disclosure - Net Loss Per Share Attributable to Common Stockholders - Weighted-Average Common Stock Equivalents Excluded from Calculation of Diluted Net Loss Per Share as They Had Anti-Dilutive Effect (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureNetLossPerShareAttributableToCommonStockholdersWeightedAverageCommonStockEquivalentsExcludedFromCalculationOfDilutedNetLossPerShareAsTheyHadAntiDilutiveEffectDetails Net Loss Per Share Attributable to Common Stockholders - Weighted-Average Common Stock Equivalents Excluded from Calculation of Diluted Net Loss Per Share as They Had Anti-Dilutive Effect (Details) Details 55 false false R56.htm 100550 - Disclosure - Employee Benefit Plan - Additional Information (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureEmployeeBenefitPlanAdditionalInformationDetails Employee Benefit Plan - Additional Information (Details) Details 56 false false R57.htm 100560 - Disclosure - Related Party Transactions - Additional Information (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/Role_DisclosureRelatedPartyTransactionsAdditionalInformationDetails Related Party Transactions - Additional Information (Details) Details 57 false false R58.htm 100570 - Disclosure - Subsequent Event - Additional Information (Details) Sheet http://vaccinex.com/20221231/taxonomy/role/DisclosureSubsequentEventAdditionalInformationDetails Subsequent Event - Additional Information (Details) Details 58 false false All Reports Book All Reports [dq-0542-Deprecated-Concept] Concept TreasuryStockMember in us-gaap/2022 used in 6 facts was deprecated in us-gaap/2023 as of 2023 and should not be used. vcnx-20221231.htm 4385, 4389, 4658, 4662, 4814, 4818 [dq-0542-Deprecated-Concept] Concept PropertyPlantAndEquipmentEstimatedUsefulLives in us-gaap/2022 used in 1 facts was deprecated in us-gaap/2023 as of 2023 and should not be used. vcnx-20221231.htm 5297 [ix-0514-Hidden-Fact-Eligible-For-Transform] WARN: 5 fact(s) appearing in ix:hidden were eligible for transformation: dei:CurrentFiscalYearEndDate, us-gaap:OperatingLossCarryforwardsExpirationDate, us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1, us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod - vcnx-20221231.htm 8 vcnx-20221231.htm vcnx-20221231.xsd vcnx-20221231_cal.xml vcnx-20221231_def.xml vcnx-20221231_lab.xml vcnx-20221231_pre.xml vcnx-ex23_1.htm vcnx-ex31_1.htm vcnx-ex31_2.htm vcnx-ex32_1.htm img69278227_0.jpg img69278227_1.jpg img69278227_10.jpg img69278227_11.jpg img69278227_12.jpg img69278227_13.jpg img69278227_14.jpg img69278227_15.jpg img69278227_16.jpg img69278227_17.jpg img69278227_18.jpg img69278227_19.jpg img69278227_2.jpg img69278227_20.jpg img69278227_21.jpg img69278227_22.jpg img69278227_3.jpg img69278227_4.jpg img69278227_5.jpg img69278227_6.jpg img69278227_7.jpg img69278227_8.jpg img69278227_9.jpg http://fasb.org/us-gaap/2022 http://xbrl.sec.gov/dei/2022 true true