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Document and Entity Information
Dec. 29, 2025
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Dec. 29, 2025
Entity File Number 001-36706
Entity Registrant Name CB Financial Services, Inc.
Entity Central Index Key 0001605301
Entity Incorporation, State or Country Code PA
Entity Tax Identification Number 51-0534721
Entity Address, Address Line One 100 North Market Street
Entity Address, City or Town Carmichaels
Entity Address, State or Province PA
Entity Address, Postal Zip Code 15320
City Area Code 724
Local Phone Number 966-5041
Title of 12(b) Security Common stock, par value $0.4167 per share
Trading Symbol CBFV
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false