Velo3D, Inc. Annual report pursuant to Section 13 and 15(d)

Equity Instruments - Common Stock Reserved for Issuance (Details) - shares	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 29, 2021
Class of Stock [Line Items]
Total shares of common stock reserved	39,501,895		34,271,748	66,830,878
Common stock warrants
Class of Stock [Line Items]
Total shares of common stock reserved	13,145,000		13,075,000
Shares available for future grant under 2021 Equity Incentive Plan \| 2021 Stock Option Plan
Class of Stock [Line Items]
Total shares of common stock reserved	20,861,294		17,533,471
Reserved for employee stock purchase plan
Class of Stock [Line Items]
Total shares of common stock reserved	5,495,601	1,832,324	3,663,277