Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation -Narrative (Details)

v3.23.3
Stock-Based Compensation -Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 29, 2021
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2021
Dec. 31, 2022
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Average exercise price per share   $ 4.11 $ 4.14 $ 5.16 $ 4.11     $ 5.16
Number of shares awarded (in shares)   35,625 375,168 0 410,793 0    
Restricted stock units withheld for employee tax liability (shares)   (19,360) (34,058) [1]   (53,418)      
Unrecognized compensation expense   $ 541     $ 541      
Unrecognized compensation expense expected to be recognized over the weighted average period         3 years 3 months 25 days      
Unvested RSUs                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Fair value of RSUs         $ 2,121      
Unrecognized compensation expense   $ 4,909     $ 4,909      
Unrecognized compensation expense expected to be recognized over the weighted average period         2 years 7 months 2 days      
2010 Stock Plan                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Maximum number of shares authorized for issuance (in shares) 2,117,818              
Percentage of exchange ratio used to determine the number of restricted stock units granted as right to receive         10.00%      
Aggregate number of options to purchase   612,650     612,650      
Average exercise price per share   $ 4.96     $ 4.96      
2010 Stock Plan | Legacy Shapeways Stock Option                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Recapitalization conversion ratio 0.8293              
Percentage of recapitalization conversion ratio for conversion in to common stock 90.00%              
Percentage of recapitalization conversion ratio as divider for determining exercise price 90.00%              
2021 Equity Incentive Plan                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Percentage of outstanding stock, maximum             5.00%  
Number of shares awarded (in shares)         1,565,630      
Number of shares remain available for issuance (in shares)   597,619     597,619      
2022 Equity Incentive Plan                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Number of shares awarded (in shares)         625,000      
Number of shares remain available for issuance (in shares)   412,674     412,674      
2021 Employee Stock Purchase Plan                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Number of shares available for purchase   172,749     172,749      
Number of shares purchased (in shares)         0      
[1] Retroactively adjusted shares issued and outstanding to give effect to the Company's 1-for-8 reverse stock split. See Note 2.