Velo3D, Inc. Annual report [Section 13 and 15(d), not S-K Item 405]

Equity Incentive Plans & Stock-Based Compensation - Stock-Based Compensation Expense - Included in Cost of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share- based compensation expense, included in cost of revenue	$ 1,648	$ 2,058
Cost of 3D Printer
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share- based compensation expense, included in cost of revenue	999	1,622
Cost of Support Services
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share- based compensation expense, included in cost of revenue	649	436
Restricted stock units
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share- based compensation expense, included in cost of revenue	1,644	1,995
Common stock options
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share- based compensation expense, included in cost of revenue	$ 4	$ 63