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Cover - USD ($)
 12 Months Ended
Dec. 31, 2021
Mar. 23, 2022
Jun. 30, 2021
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2021    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2021    
Current Fiscal Year End Date --12-31    
Entity File Number 001-38148    
Entity Registrant Name CO-DIAGNOSTICS, INC.    
Entity Central Index Key 0001692415    
Entity Tax Identification Number 46-2609396    
Entity Incorporation, State or Country Code UT    
Entity Address, Address Line One 2401 S. Foothill Drive    
Entity Address, City or Town Salt Lake City    
Entity Address, State or Province UT    
Entity Address, Postal Zip Code 84109    
City Area Code (801)    
Local Phone Number 438-1036    
Title of 12(b) Security Common Stock    
Trading Symbol CODX    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Elected Not To Use the Extended Transition Period false    
Entity Shell Company false    
Entity Public Float     $ 229,000,000
Entity Common Stock, Shares Outstanding   33,965,318  
ICFR Auditor Attestation Flag false    
Auditor Firm ID 457    
Auditor Name Haynie & Company    
Auditor Location Salt Lake City, Utah