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Document and Entity Information
 12 Months Ended
Dec. 31, 2022
Document Information [Line Items]  
Entity Central Index Key 0001534248
Document Fiscal Period Focus FY
Amendment Flag false
Document Type 8-K
Document Fiscal Year Focus 2022
Document Period End Date Dec. 31, 2022
Entity File Number 001-38807
Entity Registrant Name Chemomab Therapeutics Ltd.
Entity Incorporation, State or Country Code L3
Entity Tax Identification Number 81-3676773
Entity Address, Address Line One Kiryat Atidim
Entity Address, Address Line Two Building 7
Entity Address, City or Town Tel Aviv
Entity Address, Country IL
Entity Address, Postal Zip Code 6158002
City Area Code 972
Local Phone Number 77-331-0156
Entity Emerging Growth Company true
Entity Ex Transition Period false
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
American Depositary Shares [Member]  
Document Information [Line Items]  
Title of 12(b) Security American Depositary Shares, each representing twenty (20) ordinary shares, no par value per share
Trading Symbol CMMB
Name of Exchange on which Security is Registered NASDAQ
Ordinary Shares, No Par Value Per Share [Member]  
Document Information [Line Items]  
Title of 12(b) Security Ordinary shares, no par value per share
Trading Symbol N/A
Name of Exchange on which Security is Registered NASDAQ