v3.26.1
Document And Entity Information
Jun. 22, 2026
Document Information Line Items  
Entity Central Index Key 0000739421
Document Type 8-K
Document Period End Date Jun. 16, 2026
Entity Registrant Name CITIZENS FINANCIAL SERVICES, INC.
Entity Incorporation, State or Country Code PA
Entity File Number 001-41410
Entity Tax Identification Number 23-2265045
Entity Address, Address Line One 15 S Main St.
Entity Address, City or Town Mansfield
Entity Address, State or Province PA
Entity Address, Postal Zip Code 16933
City Area Code 570
Local Phone Number 662-0444
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 $1.00 Per Share
Trading Symbol CZFS
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Amendment Flag false