Quarterly report pursuant to Section 13 or 15(d)

Equity Instruments - Common Stock Reserved for Issuance (Details)

v3.21.2
Equity Instruments - Common Stock Reserved for Issuance (Details) - shares
 9 Months Ended
Sep. 29, 2021
Sep. 30, 2021
Dec. 31, 2020
Class of Stock [Line Items]      
Total shares of common stock reserved 66,830,878 66,830,878 175,857,762
JAWS Spitfire | Eligible Velo3D Equityholders      
Class of Stock [Line Items]      
Number of shares that the holders may receive 10,879,074    
Maximum | JAWS Spitfire | Eligible Velo3D Equityholders      
Class of Stock [Line Items]      
Number of shares that the holders may receive 21,758,148 21,758,148  
Redeemable convertible preferred stock      
Class of Stock [Line Items]      
Total shares of common stock reserved   0 147,876,672
Redeemable convertible preferred stock warrants      
Class of Stock [Line Items]      
Total shares of common stock reserved   0 408,729
Common stock warrants      
Class of Stock [Line Items]      
Total shares of common stock reserved   13,075,000 214,032
Common stock options issued and outstanding      
Class of Stock [Line Items]      
Total shares of common stock reserved   21,342,660 21,471,321
Shares available for future grant under 2014 Equity Incentive Plan | 2014 Stock Option Plan      
Class of Stock [Line Items]      
Total shares of common stock reserved   0 5,887,008
Shares available for future grant under 2014 Equity Incentive Plan | 2021 Stock Option Plan      
Class of Stock [Line Items]      
Total shares of common stock reserved   21,423,388 0
Reserved for employee stock purchase plan      
Class of Stock [Line Items]      
Total shares of common stock reserved   10,989,830 0