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Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2019
Mar. 18, 2020
Jun. 30, 2019
Details      
Registrant CIK 0000019871    
Fiscal Year End --12-31    
Registrant Name Chicago Rivet & Machine Co.    
SEC Form 10-K    
Period End date Dec. 31, 2019    
Number of common stock shares outstanding   966,132  
Public Float     $ 22,398,781
Filer Category Non-accelerated Filer    
Current with reporting Yes    
Interactive Data Current Yes    
Voluntary filer No    
Well-known Seasoned Issuer No    
Shell Company false    
Small Business true    
Emerging Growth Company false    
Entity File Number 000-01227    
Entity Incorporation, State or Country Code IL    
Entity Address, Address Line One 901 Frontenac Road    
Entity Address, City or Town Naperville    
Entity Address, State or Province IL    
Entity Address, Postal Zip Code 60563    
City Area Code 630    
Local Phone Number 357-8500    
Amendment Flag false    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Document Annual Report true    
Document Transition Report false