Quarterly report pursuant to Section 13 or 15(d)

Basic and Diluted Net Loss per Share - Potentially Dilutive Securities Excluded from Computation (Details)

v3.21.2
Basic and Diluted Net Loss per Share - Potentially Dilutive Securities Excluded from Computation (Details) - shares
 9 Months Ended
Sep. 29, 2021
Sep. 30, 2021
Sep. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Total potentially dilutive common share equivalents   34,417,660 131,445,038
JAWS Spitfire | Eligible Velo3D Equityholders      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Number of shares that the holders may receive 10,879,074    
Maximum | JAWS Spitfire | Eligible Velo3D Equityholders      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Number of shares that the holders may receive 21,758,148 21,758,148  
Redeemable convertible preferred stock      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Total potentially dilutive common share equivalents   0 108,642,440
Convertible promissory note      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Total potentially dilutive common share equivalents   0 3,283,548
Redeemable convertible preferred stock warrants      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Total potentially dilutive common share equivalents   0 332,893
Common stock warrants      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Total potentially dilutive common share equivalents   13,075,000 51,847
Common stock options issued and outstanding      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Total potentially dilutive common share equivalents   21,342,660 19,134,310