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Summary of Significant Accounting Policies - Income (Loss) per Share (Details)

v3.21.2
Summary of Significant Accounting Policies - Income (Loss) per Share (Details) - USD ($)
3 Months Ended 5 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Jun. 30, 2021
Jun. 30, 2020
Sep. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Basic net income (loss) per share computation:                  
Net (Loss) Income $ (224,706) $ (1,301,788) $ 1,291,894 $ (378,919) $ (11,284,061) $ (9,894) $ (234,600) $ (1,531,192)  
Diluted net income (loss) per share computation:                  
Net (Loss) Income $ (224,706) $ (1,301,788) $ 1,291,894 $ (378,919) $ (11,284,061) (9,894) $ (234,600) $ (1,531,192)  
Adjusted weighted average shares - diluted         17,910,000     17,910,000  
SHAPEWAYS, INC                  
Basic net income (loss) per share computation:                  
Net (Loss) Income         $ 1,573,000 $ (2,470,000)   $ (3,168,000) $ (6,973,000)
Weighted average common shares - basic         21,655,829 20,571,122      
Basic net income (loss) per share         $ 0.07 $ (0.12)      
Diluted net income (loss) per share computation:                  
Net (Loss) Income         $ 1,573,000 $ (2,470,000)   $ (3,168,000) $ (6,973,000)
Weighted average common shares         21,655,829 20,571,122      
Incremental shares from assumed exercise of Preferred Stock warrants, convertible notes, and options         23,242,760        
Adjusted weighted average shares - diluted         44,898,589 20,571,122      
Diluted net income (loss) per share         $ 0.04 $ (0.12)