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Cover - USD ($)
 12 Months Ended
Dec. 31, 2025
Mar. 29, 2026
Jun. 30, 2025
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2025    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2025    
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 false    
Entity Shell Company false    
Entity Public Float     $ 10,000,000
Entity Common Stock, Shares Outstanding   3,602,465  
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Listing, Par Value Per Share $ 0.001    
Auditor Firm ID 270    
Auditor Opinion [Text Block] We have audited the accompanying consolidated balance sheets of Co-Diagnostics, Inc. and subsidiaries (the Company) as of December 31, 2025 and 2024, the related consolidated statements of operations and comprehensive loss, changes in stockholders’ equity, and cash flows for the years then ended, and the related notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the consolidated financial position of the Company as of December 31, 2025 and 2024, and the consolidated results of its operations and its cash flows for the two-year period ended December 31, 2025, in conformity with accounting principles generally accepted in the United States of America.    
Auditor Name Tanner LLP    
Auditor Location Salt Lake City, Utah