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Cover
 12 Months Ended
Dec. 31, 2025
shares
Document Information [Line Items]  
Document Type 20-F
Document Registration Statement false
Document Annual Report true
Document Transition Report false
Document Financial Statement Error Correction [Flag] false
Document Shell Company Report false
Entity Interactive Data Current Yes
Document Accounting Standard U.S. GAAP
ICFR Auditor Attestation Flag false
Amendment Flag false
Document Period End Date Dec. 31, 2025
Document Fiscal Year Focus 2025
Document Fiscal Period Focus FY
Entity Information [Line Items]  
Entity Registrant Name Check-Cap Ltd.
Entity Central Index Key 0001610590
Entity File Number 001-36848
Entity Incorporation, State or Country Code L3
Current Fiscal Year End Date --12-31
Entity Well-known Seasoned Issuer No
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Shell Company false
Entity Filer Category Non-accelerated Filer
Entity Emerging Growth Company false
Entity Contact Personnel [Line Items]  
Entity Address, Address Line One 29 Abba Hushi Avenue
Entity Address, Address Line Two P.O. Box 1271
Entity Address, City or Town Isfiya
Entity Address, Country IL
Entity Address, Postal Zip Code 3009000
Entity Listings [Line Items]  
Title of 12(b) Security Ordinary Shares, par value NIS 48.00
Trading Symbol MBAI
Security Exchange Name NASDAQ
Entity Common Stock, Shares Outstanding 7,020,502
Business Contact [Member]  
Entity Contact Personnel [Line Items]  
Contact Personnel Name David Lontini
Contact Personnel Email Address david@londacorp.com
Entity Address, Address Line One 29 Abba Hushi Avenue
Entity Address, Address Line Two P.O. Box 1271
Entity Address, City or Town Isfiya
Entity Address, Country IL
Entity Address, Postal Zip Code 3009000
Entity Phone Fax Numbers [Line Items]  
City Area Code +1 (647)
Local Phone Number 892-9516