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Cover
Nov. 20, 2025
Cover [Abstract]  
Document Type 8-K
Document Period End Date Nov. 20, 2025
Entity Registrant Name CB FINANCIAL SERVICES, INC.
Entity File Number 001-36706
Entity Incorporation, State or Country Code PA
Entity Tax Identification Number 51-0534721
Entity Address, Address Line One 100 N. 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
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
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
Entity Central Index Key 0001605301
Amendment Flag false
Current Fiscal Year End Date --12-31