Equity Instruments - Additional Information (Details)

v3.26.1

Equity Instruments - Additional Information (Details)								1 Months Ended	12 Months Ended
	Dec. 23, 2025 USD ($)	Dec. 22, 2025 $ / shares shares	Aug. 19, 2025 USD ($) $ / shares shares	Apr. 12, 2024 USD ($)	Apr. 10, 2024 USD ($) $ / shares shares	Jan. 31, 2024 USD ($)	Sep. 29, 2021 USD ($) LeasedAsset Tranche $ / shares shares	Feb. 28, 2023 USD ($)	Dec. 31, 2025 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares	Nov. 30, 2025 shares	Jun. 27, 2025 $ / shares	Feb. 24, 2025 shares	Aug. 12, 2024 $ / shares shares	Aug. 11, 2024 $ / shares	Jul. 01, 2024 $ / shares shares	Jun. 10, 2024 $ / shares	Apr. 30, 2024 shares	Dec. 31, 2023 USD ($)	Dec. 29, 2023 $ / shares shares	Dec. 31, 2022 shares	Jul. 25, 2022 $ / shares shares	Dec. 02, 2020 $ / shares shares
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)									36,892	366,946
Exercise Price per Warrant (in dollars per share) | $ / shares					$ 183.75
Warrant liabilities | $									$ 108,866,000	$ 2,166,874,000
At-the-market offering, company may offer to sell, january 31, 2024 amendment | $																			$ 75,000,000
Common stock, shares authorized									500,000,000	500,000,000
Common stock, shares issued									24,607,630	12,993,962
Common stock, par value (in dollars per share) | $ / shares									$ 0.00001	$ 0.00001		$ 0.00001					$ 0.00001
Preferred stock, shares issued									10,000,000
Preferred stock, par value | $ / shares									$ 0.00001
Common stock, shares outstanding									24,607,630	12,993,962
Number of shares of common stock reserved for issuance (in shares)									191,062	437,743
ATM Sales Agreement
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Value of shares sold, may offer and sell up to | $								$ 40,000,000
Common stock, shares issued									0
Number of shares of common stock reserved for issuance (in shares)									5,383		0
Gross proceeds | $						$ 75,000,000
2021 Equity Incentive Plan
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of shares of common stock reserved for issuance (in shares)									0									24,612			81,460
2021 Employee Stock Purchase Plan
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of shares of common stock reserved for issuance (in shares)																		4,917
Securities Purchase Agreement
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Exercise Price per Warrant (in dollars per share) | $ / shares					$ 183.75
Class of Warrant or Right, Unissued					65,307
Proceeds from Issuance of Common Stock | $					$ 12,000,000
April 2024 Securities Purchase Agreement
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Exercise Price per Warrant (in dollars per share) | $ / shares					$ 183.75
Number of shares of common stock reserved for issuance (in shares)					65,307
Class of Warrant or Right, Unissued					65,307
Proceeds from Issuance of Common Stock | $				$ 12,000,000
Placement Agency Agreement
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Placement Agency Agreement, Cash Fee of Aggregate Purchase Price					7.00%
Placement agency agreement, certain expenses, reimbursed amount | $					$ 150,000
Placement Agency Agreement, Percent, Purchase Number of Shares of Common Stock Sold in Offering					5.00%
Placement Agency Agreement, Shares, Purchase Number of Shares of Common Stock Sold in Offering					3,266
Placement Agent Warrants, Exercise Price | $ / shares					$ 202.125
Placement Agent Warrants, Percent, Offering Price Per Share					110.00%
July 2024 Private Warrants
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Exercise Price per Warrant (in dollars per share) | $ / shares																$ 37.5
Warrants term																5 years
Class of Warrant or Right, Unissued																110,000
February 2025 Securities Purchase Agreement
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)													990,159
Underwriting Agreement
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Common stock, par value (in dollars per share) | $ / shares			$ 0.00001
Proceeds from Issuance of Common Stock | $			$ 17,800,000
Underwriting Agreement | Common Stock
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Common stock, par value (in dollars per share) | $ / shares			$ 0.00001
Sale of stock, shares issued			5,833,333
Common stock issued			5,833,333
Sale of stock, price per share | $ / shares			$ 3
Private Placement
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Gross proceeds from issuance of common stock | $	$ 30,000,000
Private Placement | Common Stock
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Common stock, par value (in dollars per share) | $ / shares		$ 0.00001
Common stock issued		3,636,363
Sale of stock, price per share | $ / shares		$ 8.25
JAWS Spitfire
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of total earnout shares | $							$ 1,000,000
Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of private placement | $									$ 100,000	$ 100,000
Maximum | Underwriting Agreement | Common Stock
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Sale of stock, additional number of shares issued			875,000
Eligible Velo3D Equityholders
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Earnout period							5 years
Number of tranches | Tranche							2
Eligible Velo3D Equityholders | Warrant Redemption, Scenario One [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of common stock outstanding							5.00%
Share price trigger (in usd per share) | $ / shares							$ 6,562.5
Threshold trading days | LeasedAsset							20
Threshold consecutive trading days							30 days
Eligible Velo3D Equityholders | Contingent Earnout Liability, Scenario Two
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of common stock outstanding							5.00%
Share price trigger (in usd per share) | $ / shares							$ 7,875
Threshold trading days | LeasedAsset							20
Threshold consecutive trading days							30 days
Eligible Velo3D Equityholders | JAWS Spitfire
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of shares that the holders may receive (in shares)							20,722
Eligible Velo3D Equityholders | Maximum | JAWS Spitfire
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of shares that the holders may receive (in shares)							41,444
Private Placement Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)									8,477														8,477
Fair Value on Issue Date per warrant (in dollars per warrant) | $ / shares																							30
Exercise Price per Warrant (in dollars per share) | $ / shares																							$ 6,037.5
Public Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)									16,429	16,429													65,715
Fair Value on Issue Date per warrant (in dollars per warrant) | $ / shares									115.5	115.5													150
Exercise Price per Warrant (in dollars per share) | $ / shares									$ 6,037.5	$ 6,037.5													$ 6,037.5
Warrants term									5 years
Private Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)									8,477	8,477
Fair Value on Issue Date per warrant (in dollars per warrant) | $ / shares									70	70
Exercise Price per Warrant (in dollars per share) | $ / shares									$ 6,037.5	$ 6,037.5
2022 Private Placement Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)									134	134												134
Fair Value on Issue Date per warrant (in dollars per warrant) | $ / shares									12.29	85.05
Exercise Price per Warrant (in dollars per share) | $ / shares									$ 1,344	$ 1,344												$ 1,344
Warrants term									8 years 6 months 25 days
Warrant liabilities | $									$ 1,639,000	$ 1,102,000
2023 Private Warrant A [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)										19,048										68,572
Fair Value on Issue Date per warrant (in dollars per warrant) | $ / shares										10.5
Exercise Price per Warrant (in dollars per share) | $ / shares										$ 299.25										$ 299.25
Warrant liabilities | $										$ 90,469,000
2023 Private Warrant B [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)									3,429	3,429										3,429
Fair Value on Issue Date per warrant (in dollars per warrant) | $ / shares									8.31	10.5
Exercise Price per Warrant (in dollars per share) | $ / shares									$ 326.29	$ 326.29										$ 326.29
Warrant liabilities | $									$ 28,504,000	$ 15,835,000
2024 Private Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)										41,808
Fair Value on Issue Date per warrant (in dollars per warrant) | $ / shares										10.08
Exercise Price per Warrant (in dollars per share) | $ / shares									$ 199.35	$ 199.35
Warrants term										4 months 13 days
Warrant liabilities | $										$ 2,007,000
Class of Warrant or Right, Unissued									41,808
BEPO Warrants
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)									5,157	65,307
Fair Value on Issue Date per warrant (in dollars per warrant) | $ / shares									9.4	9.21
Exercise Price per Warrant (in dollars per share) | $ / shares									$ 183.75	$ 183.75
Warrant liabilities | $									$ 48,480,000	$ 377,750,000
Class of Warrant or Right, Unissued									65,307
BEPO Agent Warrants
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)									3,266	3,266
Fair Value on Issue Date per warrant (in dollars per warrant) | $ / shares									9.26	9.11
Exercise Price per Warrant (in dollars per share) | $ / shares									$ 202.125	$ 202.13
Warrant liabilities | $									$ 30,242,000	$ 18,477,000
Class of Warrant or Right, Unissued									3,266
Common Stock Warrants
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Publicly traded price | $ / shares									$ 13.74	$ 10.2
Common Stock Warrants | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liabilities | $									$ 100	$ 100
Warrant Inducement Agreement [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)														49,524
Exercise Price per Warrant (in dollars per share) | $ / shares														$ 34.2	$ 296.7
New Warrants
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)														99,048
Exercise Price per Warrant (in dollars per share) | $ / shares														$ 34.2
April 2024 Registered Warrants | Highbridge Holders and Anson Holders [Member] | February 2025 Securities Purchase Agreement
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)													60,150
August 2024 Registered Warrants | Highbridge Holders and Anson Holders [Member] | February 2025 Securities Purchase Agreement
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)													99,048
April and July 2024 Unregistered Warrants | High Trail Holders | February 2025 Securities Purchase Agreement
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)													151,808
December 2023 Registered Warrants | High Trail Holders | February 2025 Securities Purchase Agreement
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)													19,048
Warrant to purchase common stock
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)									36,892	366,946