General form of registration statement for all companies including face-amount certificate companies

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

v3.21.2
Summary of Significant Accounting Policies - Loss per Share (Details) - SHAPEWAYS, INC - shares
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Convertible Series A-2 Preferred Stock    
Summary of Significant Accounting Policies    
Anti-dilutive shares of common stock outstanding 3,000,667 3,000,667
Convertible Series B Preferred Stock    
Summary of Significant Accounting Policies    
Anti-dilutive shares of common stock outstanding 1,809,751 1,809,751
Convertible Series B-1 Preferred Stock    
Summary of Significant Accounting Policies    
Anti-dilutive shares of common stock outstanding 2,174,591 2,174,591
Convertible Series C Preferred Stock    
Summary of Significant Accounting Policies    
Anti-dilutive shares of common stock outstanding 4,973,101 4,973,101
Convertible Series D Preferred Stock    
Summary of Significant Accounting Policies    
Anti-dilutive shares of common stock outstanding 3,965,857 3,965,857
Convertible Series E Preferred Stock    
Summary of Significant Accounting Policies    
Anti-dilutive shares of common stock outstanding 6,655,728 6,655,728
Warrant [Member]    
Summary of Significant Accounting Policies    
Anti-dilutive shares of common stock outstanding 381,926 381,926
Convertible Promissory Notes    
Summary of Significant Accounting Policies    
Anti-dilutive shares of common stock outstanding 1,610,024 1,495,273