Velo3D, Inc. Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

Equity Instruments - Additional Information (Details)

Equity Instruments - Additional Information (Details)					1 Months Ended	9 Months Ended	12 Months Ended
Equity Instruments - Additional Information (Details)	Aug. 19, 2025 USD ($) $ / shares shares	Apr. 12, 2024 USD ($)	Jan. 31, 2024 USD ($)	Sep. 29, 2021 Tranche shares	Feb. 28, 2023 USD ($)	Sep. 30, 2025 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares	Jun. 30, 2025 $ / shares 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	Apr. 10, 2024 USD ($) $ / shares shares	Dec. 02, 2020 $ / shares
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)						36,892	366,946
Common stock, shares authorized						500,000,000	500,000,000
Common stock, shares issued						20,912,172	12,993,962
Common stock, par value \| $ / shares						$ 0.00001	$ 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						20,912,172	12,993,962
Number of shares of common stock reserved for issuance (in shares)						191,172	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)								38,096
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)															24,612
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
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
February 2025 Securities Purchase Agreement
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)										990,159
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
Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of private placement \| $							$ 100,000
Eligible Velo3D Equityholders
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Earnout period						5 years
Number of tranches \| Tranche				2
Eligible Velo3D Equityholders \| 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
Underwriting Agreement
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Common stock, par value \| $ / shares	$ 0.00001
Proceeds from issuance of common stock \| $	$ 17,800,000
Underwriting Agreement \| Common Stock [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Sale of stock, shares issued	5,833,333
Sale of stock, price per share \| $ / shares	$ 3
Common stock, par value \| $ / shares	$ 0.00001
Underwriting Agreement \| Maximum \| Common Stock [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Sale of stock, additional number of shares issued	875,000
Common stock warrants
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)						36,892	366,946
Private Placement Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
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
Exercise Price per Warrant (in dollars per share) \| $ / shares						$ 6,037.5	$ 6,037.5
2022 Private Placement Warrants
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)						134	134
Exercise Price per Warrant (in dollars per share) \| $ / shares						$ 1,344	$ 1,344										$ 1,344
2023 Private Warrant A [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)							19,048
Exercise Price per Warrant (in dollars per share) \| $ / shares						299.25	$ 299.25
2023 Private Warrant B [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)							3,429
Exercise Price per Warrant (in dollars per share) \| $ / shares						326.25	$ 326.29
2024 Private Warrants [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Number of Warrants (in shares)							41,808
Exercise Price per Warrant (in dollars per share) \| $ / shares						$ 199.35	$ 199.35
Fair value of private placement \| $						$ 0
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
Exercise Price per Warrant (in dollars per share) \| $ / shares						$ 183.75	$ 183.75
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
Exercise Price per Warrant (in dollars per share) \| $ / shares						$ 202.125	$ 202.13
Class of Warrant or Right, Unissued						3,266
Common Stock Warrants
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liabilities \| $						$ 0	$ 0
Publicly traded price \| $ / shares						$ 0	$ 0
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
August Inducement 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
Warrants term							4 years 7 months 13 days
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 \| 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 \| 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