3.22.1 html 336 488 1 false 120 0 false 13 false false R1.htm 0001001 - Document - Cover Sheet http://www.velo3d.com/role/Cover Cover Cover 1 false false R2.htm 0002002 - Document - Audit Information Sheet http://www.velo3d.com/role/AuditInformation Audit Information Notes 2 false false R3.htm 1001003 - Statement - Consolidated Balance Sheets Sheet http://www.velo3d.com/role/ConsolidatedBalanceSheets Consolidated Balance Sheets Uncategorized 3 false false R4.htm 1002004 - Statement - Consolidated Balance Sheets (Parenthetical) Sheet http://www.velo3d.com/role/ConsolidatedBalanceSheetsParenthetical Consolidated Balance Sheets (Parenthetical) Cover 4 false false R5.htm 1003005 - Statement - Consolidated Statements of Operations and Comprehensive Loss Sheet http://www.velo3d.com/role/ConsolidatedStatementsofOperationsandComprehensiveLoss Consolidated Statements of Operations and Comprehensive Loss Statements 5 false false R6.htm 1004006 - Statement - Consolidated Statements of Cash Flows Sheet http://www.velo3d.com/role/ConsolidatedStatementsofCashFlows Consolidated Statements of Cash Flows Statements 6 false false R7.htm 1005007 - Statement - Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders??? Equity (Deficit) Sheet http://www.velo3d.com/role/ConsolidatedStatementsofRedeemableConvertiblePreferredStockandStockholdersEquityDeficit Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders??? Equity (Deficit) Statements 7 false false R8.htm 2101101 - Disclosure - Description of Business and Basis of Presentation Sheet http://www.velo3d.com/role/DescriptionofBusinessandBasisofPresentation Description of Business and Basis of Presentation Notes 8 false false R9.htm 2103102 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.velo3d.com/role/SummaryofSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 9 false false R10.htm 2111103 - Disclosure - Reverse Recapitalization Sheet http://www.velo3d.com/role/ReverseRecapitalization Reverse Recapitalization Notes 10 false false R11.htm 2115104 - Disclosure - Basic and Diluted Net Loss per Share Sheet http://www.velo3d.com/role/BasicandDilutedNetLossperShare Basic and Diluted Net Loss per Share Notes 11 false false R12.htm 2119105 - Disclosure - Fair Value Measurements Sheet http://www.velo3d.com/role/FairValueMeasurements Fair Value Measurements Notes 12 false false R13.htm 2123106 - Disclosure - Investments Sheet http://www.velo3d.com/role/Investments Investments Notes 13 false false R14.htm 2127107 - Disclosure - Accounts Receivable, Net Sheet http://www.velo3d.com/role/AccountsReceivableNet Accounts Receivable, Net Notes 14 false false R15.htm 2130108 - Disclosure - Inventories Sheet http://www.velo3d.com/role/Inventories Inventories Notes 15 false false R16.htm 2133109 - Disclosure - Prepaid Expenses and Other Current Assets Sheet http://www.velo3d.com/role/PrepaidExpensesandOtherCurrentAssets Prepaid Expenses and Other Current Assets Notes 16 false false R17.htm 2136110 - Disclosure - Property and Equipment, Net Sheet http://www.velo3d.com/role/PropertyandEquipmentNet Property and Equipment, Net Notes 17 false false R18.htm 2139111 - Disclosure - Equipment on Lease, Net Sheet http://www.velo3d.com/role/EquipmentonLeaseNet Equipment on Lease, Net Notes 18 false false R19.htm 2141112 - Disclosure - Accrued Expenses and Other Current Liabilities Sheet http://www.velo3d.com/role/AccruedExpensesandOtherCurrentLiabilities Accrued Expenses and Other Current Liabilities Notes 19 false false R20.htm 2144113 - Disclosure - Other Noncurrent Liabilities Sheet http://www.velo3d.com/role/OtherNoncurrentLiabilities Other Noncurrent Liabilities Notes 20 false false R21.htm 2147114 - Disclosure - Leases Sheet http://www.velo3d.com/role/Leases Leases Notes 21 false false R22.htm 2153115 - Disclosure - Long-Term Debt Sheet http://www.velo3d.com/role/LongTermDebt Long-Term Debt Notes 22 false false R23.htm 2162116 - Disclosure - Convertible Notes Payable Notes http://www.velo3d.com/role/ConvertibleNotesPayable Convertible Notes Payable Notes 23 false false R24.htm 2164117 - Disclosure - Equity Instruments Sheet http://www.velo3d.com/role/EquityInstruments Equity Instruments Notes 24 false false R25.htm 2177118 - Disclosure - Equity Incentive Plans & Stock-Based Compensation Sheet http://www.velo3d.com/role/EquityIncentivePlansStockBasedCompensation Equity Incentive Plans & Stock-Based Compensation Notes 25 false false R26.htm 2184119 - Disclosure - Income Taxes Sheet http://www.velo3d.com/role/IncomeTaxes Income Taxes Notes 26 false false R27.htm 2190120 - Disclosure - Commitment and Contingencies Sheet http://www.velo3d.com/role/CommitmentandContingencies Commitment and Contingencies Notes 27 false false R28.htm 2192121 - Disclosure - Employee Defined - Contribution Plans Sheet http://www.velo3d.com/role/EmployeeDefinedContributionPlans Employee Defined - Contribution Plans Notes 28 false false R29.htm 2194122 - Disclosure - Revenue Sheet http://www.velo3d.com/role/Revenue Revenue Notes 29 false false R30.htm 2204201 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://www.velo3d.com/role/SummaryofSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://www.velo3d.com/role/SummaryofSignificantAccountingPolicies 30 false false R31.htm 2305301 - Disclosure - Summary of Significant Accounting Policies (Tables) Sheet http://www.velo3d.com/role/SummaryofSignificantAccountingPoliciesTables Summary of Significant Accounting Policies (Tables) Tables http://www.velo3d.com/role/SummaryofSignificantAccountingPolicies 31 false false R32.htm 2312302 - Disclosure - Reverse Recapitalization (Tables) Sheet http://www.velo3d.com/role/ReverseRecapitalizationTables Reverse Recapitalization (Tables) Tables http://www.velo3d.com/role/ReverseRecapitalization 32 false false R33.htm 2316303 - Disclosure - Basic and Diluted Net Loss per Share (Tables) Sheet http://www.velo3d.com/role/BasicandDilutedNetLossperShareTables Basic and Diluted Net Loss per Share (Tables) Tables http://www.velo3d.com/role/BasicandDilutedNetLossperShare 33 false false R34.htm 2320304 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.velo3d.com/role/FairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://www.velo3d.com/role/FairValueMeasurements 34 false false R35.htm 2324305 - Disclosure - Investments (Tables) Sheet http://www.velo3d.com/role/InvestmentsTables Investments (Tables) Tables http://www.velo3d.com/role/Investments 35 false false R36.htm 2328306 - Disclosure - Accounts Receivable, Net (Tables) Sheet http://www.velo3d.com/role/AccountsReceivableNetTables Accounts Receivable, Net (Tables) Tables http://www.velo3d.com/role/AccountsReceivableNet 36 false false R37.htm 2331307 - Disclosure - Inventories (Tables) Sheet http://www.velo3d.com/role/InventoriesTables Inventories (Tables) Tables http://www.velo3d.com/role/Inventories 37 false false R38.htm 2334308 - Disclosure - Prepaid Expenses and Other Current Assets (Tables) Sheet http://www.velo3d.com/role/PrepaidExpensesandOtherCurrentAssetsTables Prepaid Expenses and Other Current Assets (Tables) Tables http://www.velo3d.com/role/PrepaidExpensesandOtherCurrentAssets 38 false false R39.htm 2337309 - Disclosure - Property and Equipment, Net (Tables) Sheet http://www.velo3d.com/role/PropertyandEquipmentNetTables Property and Equipment, Net (Tables) Tables http://www.velo3d.com/role/PropertyandEquipmentNet 39 false false R40.htm 2342310 - Disclosure - Accrued Expenses and Other Current Liabilities (Tables) Sheet http://www.velo3d.com/role/AccruedExpensesandOtherCurrentLiabilitiesTables Accrued Expenses and Other Current Liabilities (Tables) Tables http://www.velo3d.com/role/AccruedExpensesandOtherCurrentLiabilities 40 false false R41.htm 2345311 - Disclosure - Other Noncurrent Liabilities (Tables) Sheet http://www.velo3d.com/role/OtherNoncurrentLiabilitiesTables Other Noncurrent Liabilities (Tables) Tables http://www.velo3d.com/role/OtherNoncurrentLiabilities 41 false false R42.htm 2348312 - Disclosure - Leases (Tables) Sheet http://www.velo3d.com/role/LeasesTables Leases (Tables) Tables http://www.velo3d.com/role/Leases 42 false false R43.htm 2354313 - Disclosure - Long-Term Debt (Tables) Sheet http://www.velo3d.com/role/LongTermDebtTables Long-Term Debt (Tables) Tables http://www.velo3d.com/role/LongTermDebt 43 false false R44.htm 2365314 - Disclosure - Equity Instruments (Tables) Sheet http://www.velo3d.com/role/EquityInstrumentsTables Equity Instruments (Tables) Tables http://www.velo3d.com/role/EquityInstruments 44 false false R45.htm 2378315 - Disclosure - Equity Incentive Plans & Stock-Based Compensation (Tables) Sheet http://www.velo3d.com/role/EquityIncentivePlansStockBasedCompensationTables Equity Incentive Plans & Stock-Based Compensation (Tables) Tables http://www.velo3d.com/role/EquityIncentivePlansStockBasedCompensation 45 false false R46.htm 2385316 - Disclosure - Income Taxes (Tables) Sheet http://www.velo3d.com/role/IncomeTaxesTables Income Taxes (Tables) Tables http://www.velo3d.com/role/IncomeTaxes 46 false false R47.htm 2395317 - Disclosure - Revenue (Tables) Sheet http://www.velo3d.com/role/RevenueTables Revenue (Tables) Tables http://www.velo3d.com/role/Revenue 47 false false R48.htm 2402401 - Disclosure - Description of Business and Basis of Presentation (Details) Sheet http://www.velo3d.com/role/DescriptionofBusinessandBasisofPresentationDetails Description of Business and Basis of Presentation (Details) Details http://www.velo3d.com/role/DescriptionofBusinessandBasisofPresentation 48 false false R49.htm 2406402 - Disclosure - Summary of Significant Accounting Policies - Cash and Cash Equivalents and Restricted Cash (Details) Sheet http://www.velo3d.com/role/SummaryofSignificantAccountingPoliciesCashandCashEquivalentsandRestrictedCashDetails Summary of Significant Accounting Policies - Cash and Cash Equivalents and Restricted Cash (Details) Details 49 false false R50.htm 2407403 - Disclosure - Summary of Significant Accounting Policies - Revenue Recognition (Details) Sheet http://www.velo3d.com/role/SummaryofSignificantAccountingPoliciesRevenueRecognitionDetails Summary of Significant Accounting Policies - Revenue Recognition (Details) Details 50 false false R51.htm 2408404 - Disclosure - Summary of Significant Accounting Policies - Cost of Revenue (Details) Sheet http://www.velo3d.com/role/SummaryofSignificantAccountingPoliciesCostofRevenueDetails Summary of Significant Accounting Policies - Cost of Revenue (Details) Details 51 false false R52.htm 2409405 - Disclosure - Summary of Significant Accounting Policies - Property and Equipment, Net and Equipment on Lease, Net (Details) Sheet http://www.velo3d.com/role/SummaryofSignificantAccountingPoliciesPropertyandEquipmentNetandEquipmentonLeaseNetDetails Summary of Significant Accounting Policies - Property and Equipment, Net and Equipment on Lease, Net (Details) Details 52 false false R53.htm 2410406 - Disclosure - Summary of Significant Accounting Policies - Common Stock Warrants (Details) Sheet http://www.velo3d.com/role/SummaryofSignificantAccountingPoliciesCommonStockWarrantsDetails Summary of Significant Accounting Policies - Common Stock Warrants (Details) Details 53 false false R54.htm 2413407 - Disclosure - Reverse Recapitalization - Narrative (Details) Sheet http://www.velo3d.com/role/ReverseRecapitalizationNarrativeDetails Reverse Recapitalization - Narrative (Details) Details 54 false false R55.htm 2414408 - Disclosure - Reverse Recapitalization - Shares Issued in Merger (Details) Sheet http://www.velo3d.com/role/ReverseRecapitalizationSharesIssuedinMergerDetails Reverse Recapitalization - Shares Issued in Merger (Details) Details 55 false false R56.htm 2417409 - Disclosure - Basic and Diluted Net Loss per Share - Computation of Basic and Diluted Net Loss Per Share (Details) Sheet http://www.velo3d.com/role/BasicandDilutedNetLossperShareComputationofBasicandDilutedNetLossPerShareDetails Basic and Diluted Net Loss per Share - Computation of Basic and Diluted Net Loss Per Share (Details) Details 56 false false R57.htm 2418410 - Disclosure - Basic and Diluted Net Loss per Share - Potentially Dilutive Securities Excluded from Computation (Details) Sheet http://www.velo3d.com/role/BasicandDilutedNetLossperSharePotentiallyDilutiveSecuritiesExcludedfromComputationDetails Basic and Diluted Net Loss per Share - Potentially Dilutive Securities Excluded from Computation (Details) Details 57 false false R58.htm 2421411 - Disclosure - Fair Value Measurements - Assets and Liabilities Measured on Recurring Basis (Details) Sheet http://www.velo3d.com/role/FairValueMeasurementsAssetsandLiabilitiesMeasuredonRecurringBasisDetails Fair Value Measurements - Assets and Liabilities Measured on Recurring Basis (Details) Details 58 false false R59.htm 2422412 - Disclosure - Fair Value Measurements - Changes in Fair Value of Level 3 Financial Instruments (Details) Sheet http://www.velo3d.com/role/FairValueMeasurementsChangesinFairValueofLevel3FinancialInstrumentsDetails Fair Value Measurements - Changes in Fair Value of Level 3 Financial Instruments (Details) Details 59 false false R60.htm 2425413 - Disclosure - Investments - Summary (Details) Sheet http://www.velo3d.com/role/InvestmentsSummaryDetails Investments - Summary (Details) Details 60 false false R61.htm 2426414 - Disclosure - Investments - Breakdown of Investments in Unrealized Loss Position (Details) Sheet http://www.velo3d.com/role/InvestmentsBreakdownofInvestmentsinUnrealizedLossPositionDetails Investments - Breakdown of Investments in Unrealized Loss Position (Details) Details 61 false false R62.htm 2429415 - Disclosure - Accounts Receivable, Net (Details) Sheet http://www.velo3d.com/role/AccountsReceivableNetDetails Accounts Receivable, Net (Details) Details http://www.velo3d.com/role/AccountsReceivableNetTables 62 false false R63.htm 2432416 - Disclosure - Inventories (Details) Sheet http://www.velo3d.com/role/InventoriesDetails Inventories (Details) Details http://www.velo3d.com/role/InventoriesTables 63 false false R64.htm 2435417 - Disclosure - Prepaid Expenses and Other Current Assets (Details) Sheet http://www.velo3d.com/role/PrepaidExpensesandOtherCurrentAssetsDetails Prepaid Expenses and Other Current Assets (Details) Details http://www.velo3d.com/role/PrepaidExpensesandOtherCurrentAssetsTables 64 false false R65.htm 2438418 - Disclosure - Property and Equipment, Net (Details) Sheet http://www.velo3d.com/role/PropertyandEquipmentNetDetails Property and Equipment, Net (Details) Details http://www.velo3d.com/role/PropertyandEquipmentNetTables 65 false false R66.htm 2440419 - Disclosure - Equipment on Lease, Net (Details) Sheet http://www.velo3d.com/role/EquipmentonLeaseNetDetails Equipment on Lease, Net (Details) Details http://www.velo3d.com/role/EquipmentonLeaseNet 66 false false R67.htm 2443420 - Disclosure - Accrued Expenses and Other Current Liabilities (Details) Sheet http://www.velo3d.com/role/AccruedExpensesandOtherCurrentLiabilitiesDetails Accrued Expenses and Other Current Liabilities (Details) Details http://www.velo3d.com/role/AccruedExpensesandOtherCurrentLiabilitiesTables 67 false false R68.htm 2446421 - Disclosure - Other Noncurrent Liabilities (Details) Sheet http://www.velo3d.com/role/OtherNoncurrentLiabilitiesDetails Other Noncurrent Liabilities (Details) Details http://www.velo3d.com/role/OtherNoncurrentLiabilitiesTables 68 false false R69.htm 2449422 - Disclosure - Leases - Narrative (Details) Sheet http://www.velo3d.com/role/LeasesNarrativeDetails Leases - Narrative (Details) Details 69 false false R70.htm 2450423 - Disclosure - Leases - Assets and Liabilities (Details) Sheet http://www.velo3d.com/role/LeasesAssetsandLiabilitiesDetails Leases - Assets and Liabilities (Details) Details 70 false false R71.htm 2451424 - Disclosure - Leases - Lease-Related Balances (Details) Sheet http://www.velo3d.com/role/LeasesLeaseRelatedBalancesDetails Leases - Lease-Related Balances (Details) Details 71 false false R72.htm 2452425 - Disclosure - Leases - Future Minimum Lease Payments (Details) Sheet http://www.velo3d.com/role/LeasesFutureMinimumLeasePaymentsDetails Leases - Future Minimum Lease Payments (Details) Details 72 false false R73.htm 2455426 - Disclosure - Long-Term Debt - Components (Details) Sheet http://www.velo3d.com/role/LongTermDebtComponentsDetails Long-Term Debt - Components (Details) Details 73 false false R74.htm 2456427 - Disclosure - Long-Term Debt - General (Details) Sheet http://www.velo3d.com/role/LongTermDebtGeneralDetails Long-Term Debt - General (Details) Details 74 false false R75.htm 2457428 - Disclosure - Long-Term Debt - Term Loan (Details) Sheet http://www.velo3d.com/role/LongTermDebtTermLoanDetails Long-Term Debt - Term Loan (Details) Details 75 false false R76.htm 2458429 - Disclosure - Long-Term Debt - Revolving Credit Line (Details) Sheet http://www.velo3d.com/role/LongTermDebtRevolvingCreditLineDetails Long-Term Debt - Revolving Credit Line (Details) Details 76 false false R77.htm 2459430 - Disclosure - Long-Term Debt - Property and Equipment Loan (Details) Sheet http://www.velo3d.com/role/LongTermDebtPropertyandEquipmentLoanDetails Long-Term Debt - Property and Equipment Loan (Details) Details 77 false false R78.htm 2460431 - Disclosure - Long-Term Debt - Equipment Loan (Details) Sheet http://www.velo3d.com/role/LongTermDebtEquipmentLoanDetails Long-Term Debt - Equipment Loan (Details) Details 78 false false R79.htm 2461432 - Disclosure - Long-Term Debt - Future Minimum Aggregate Payments (Details) Sheet http://www.velo3d.com/role/LongTermDebtFutureMinimumAggregatePaymentsDetails Long-Term Debt - Future Minimum Aggregate Payments (Details) Details 79 false false R80.htm 2463433 - Disclosure - Convertible Notes Payable (Details) Notes http://www.velo3d.com/role/ConvertibleNotesPayableDetails Convertible Notes Payable (Details) Details http://www.velo3d.com/role/ConvertibleNotesPayable 80 false false R81.htm 2466434 - Disclosure - Equity Instruments - Redeemable Convertible Preferred Stock (Details) Sheet http://www.velo3d.com/role/EquityInstrumentsRedeemableConvertiblePreferredStockDetails Equity Instruments - Redeemable Convertible Preferred Stock (Details) Details 81 false false R82.htm 2467435 - Disclosure - Equity Instruments - Redeemable Convertible Preferred Stock, Narrative (Details) Sheet http://www.velo3d.com/role/EquityInstrumentsRedeemableConvertiblePreferredStockNarrativeDetails Equity Instruments - Redeemable Convertible Preferred Stock, Narrative (Details) Details 82 false false R83.htm 2468436 - Disclosure - Equity Instruments - Conversion of Redeemable Convertible Preferred Stock into Common Stock at a conversion ratio of 3:1 and Issuance of Series??D Redeemable Convertible Preferred Stock (Details) Sheet http://www.velo3d.com/role/EquityInstrumentsConversionofRedeemableConvertiblePreferredStockintoCommonStockataconversionratioof31andIssuanceofSeriesDRedeemableConvertiblePreferredStockDetails Equity Instruments - Conversion of Redeemable Convertible Preferred Stock into Common Stock at a conversion ratio of 3:1 and Issuance of Series??D Redeemable Convertible Preferred Stock (Details) Details 83 false false R84.htm 2469437 - Disclosure - Equity Instruments - Common Stock Reserved for Issuance (Details) Sheet http://www.velo3d.com/role/EquityInstrumentsCommonStockReservedforIssuanceDetails Equity Instruments - Common Stock Reserved for Issuance (Details) Details 84 false false R85.htm 2470438 - Disclosure - Equity Instruments - Warrant Liabilities, Narrative (Details) Sheet http://www.velo3d.com/role/EquityInstrumentsWarrantLiabilitiesNarrativeDetails Equity Instruments - Warrant Liabilities, Narrative (Details) Details 85 false false R86.htm 2471439 - Disclosure - Equity Instruments - Warrants for Shares of Stock (Details) Sheet http://www.velo3d.com/role/EquityInstrumentsWarrantsforSharesofStockDetails Equity Instruments - Warrants for Shares of Stock (Details) Details 86 false false R87.htm 2472440 - Disclosure - Equity Instruments - Rollforward of Warrant Liability (Details) Sheet http://www.velo3d.com/role/EquityInstrumentsRollforwardofWarrantLiabilityDetails Equity Instruments - Rollforward of Warrant Liability (Details) Details 87 false false R88.htm 2473441 - Disclosure - Equity Instruments - Warrants, Fair Value Assumptions (Details) Sheet http://www.velo3d.com/role/EquityInstrumentsWarrantsFairValueAssumptionsDetails Equity Instruments - Warrants, Fair Value Assumptions (Details) Details 88 false false R89.htm 2474442 - Disclosure - Equity Instruments - Contingent Earnout Liabilities, Narrative (Details) Sheet http://www.velo3d.com/role/EquityInstrumentsContingentEarnoutLiabilitiesNarrativeDetails Equity Instruments - Contingent Earnout Liabilities, Narrative (Details) Details 89 false false R90.htm 2475443 - Disclosure - Equity Instruments - Rollforward of Contingent Earnout Liabilities (Details) Sheet http://www.velo3d.com/role/EquityInstrumentsRollforwardofContingentEarnoutLiabilitiesDetails Equity Instruments - Rollforward of Contingent Earnout Liabilities (Details) Details 90 false false R91.htm 2476444 - Disclosure - Equity Instruments - Contingent Earnout Liabilities, Fair Value Assumptions (Details) Sheet http://www.velo3d.com/role/EquityInstrumentsContingentEarnoutLiabilitiesFairValueAssumptionsDetails Equity Instruments - Contingent Earnout Liabilities, Fair Value Assumptions (Details) Details 91 false false R92.htm 2479445 - Disclosure - Equity Incentive Plans & Stock-Based Compensation - Narrative (Details) Sheet http://www.velo3d.com/role/EquityIncentivePlansStockBasedCompensationNarrativeDetails Equity Incentive Plans & Stock-Based Compensation - Narrative (Details) Details http://www.velo3d.com/role/EquityIncentivePlansStockBasedCompensationTables 92 false false R93.htm 2480446 - Disclosure - Equity Incentive Plans & Stock-Based Compensation - Stock Options (Details) Sheet http://www.velo3d.com/role/EquityIncentivePlansStockBasedCompensationStockOptionsDetails Equity Incentive Plans & Stock-Based Compensation - Stock Options (Details) Details 93 false false R94.htm 2481447 - Disclosure - Equity Incentive Plans & Stock-Based Compensation - Weighted-Average Assumptions (Details) Sheet http://www.velo3d.com/role/EquityIncentivePlansStockBasedCompensationWeightedAverageAssumptionsDetails Equity Incentive Plans & Stock-Based Compensation - Weighted-Average Assumptions (Details) Details 94 false false R95.htm 2482448 - Disclosure - Equity Incentive Plans & Stock-Based Compensation - RSUs Activity (Details) Sheet http://www.velo3d.com/role/EquityIncentivePlansStockBasedCompensationRSUsActivityDetails Equity Incentive Plans & Stock-Based Compensation - RSUs Activity (Details) Details 95 false false R96.htm 2483449 - Disclosure - Equity Incentive Plans & Stock-Based Compensation - Stock-Based Compensation Expense (Details) Sheet http://www.velo3d.com/role/EquityIncentivePlansStockBasedCompensationStockBasedCompensationExpenseDetails Equity Incentive Plans & Stock-Based Compensation - Stock-Based Compensation Expense (Details) Details 96 false false R97.htm 2486450 - Disclosure - Income Taxes - Effective Income Tax Rate Reconciliation (Details) Sheet http://www.velo3d.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails Income Taxes - Effective Income Tax Rate Reconciliation (Details) Details 97 false false R98.htm 2487451 - Disclosure - Income Taxes - Deferred Tax Assets and Liabilities (Details) Sheet http://www.velo3d.com/role/IncomeTaxesDeferredTaxAssetsandLiabilitiesDetails Income Taxes - Deferred Tax Assets and Liabilities (Details) Details 98 false false R99.htm 2488452 - Disclosure - Income Taxes - Narrative (Details) Sheet http://www.velo3d.com/role/IncomeTaxesNarrativeDetails Income Taxes - Narrative (Details) Details 99 false false R100.htm 2489453 - Disclosure - Income Taxes - Unrecognized Tax Benefits (Details) Sheet http://www.velo3d.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails Income Taxes - Unrecognized Tax Benefits (Details) Details 100 false false R101.htm 2491454 - Disclosure - Commitment and Contingencies (Details) Sheet http://www.velo3d.com/role/CommitmentandContingenciesDetails Commitment and Contingencies (Details) Details http://www.velo3d.com/role/CommitmentandContingencies 101 false false R102.htm 2493455 - Disclosure - Employee Defined - Contribution Plans (Details) Sheet http://www.velo3d.com/role/EmployeeDefinedContributionPlansDetails Employee Defined - Contribution Plans (Details) Details http://www.velo3d.com/role/EmployeeDefinedContributionPlans 102 false false R103.htm 2496456 - Disclosure - Revenue - Concentration of Credit Risk and Other Risks and Uncertainties (Details) Sheet http://www.velo3d.com/role/RevenueConcentrationofCreditRiskandOtherRisksandUncertaintiesDetails Revenue - Concentration of Credit Risk and Other Risks and Uncertainties (Details) Details 103 false false R104.htm 2497457 - Disclosure - Revenue - Revenue by Geographic Area (Details) Sheet http://www.velo3d.com/role/RevenueRevenuebyGeographicAreaDetails Revenue - Revenue by Geographic Area (Details) Details 104 false false R105.htm 2498458 - Disclosure - Revenue - Narrative (Details) Sheet http://www.velo3d.com/role/RevenueNarrativeDetails Revenue - Narrative (Details) Details 105 false false All Reports Book All Reports velo-20211231.htm exhibit211.htm exhibit231velo3dincpwccons.htm exhibit311.htm exhibit312.htm exhibit321.htm exhibit322.htm exhibit4610-k155606183.htm velo-20211231.xsd velo-20211231_cal.xml velo-20211231_def.xml velo-20211231_lab.xml velo-20211231_pre.xml velo-20211231_g1.jpg http://fasb.org/us-gaap/2021-01-31 http://xbrl.sec.gov/dei/2021q4 true true