v3.22.4
Document And Entity Information
Jan. 31, 2023
Document And Entity Information [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jan. 31, 2023
Entity Registrant Name FRANKLIN FINANCIAL SERVICES CORPORATION
Entity Incorporation, State or Country Code PA
Entity File Number 001-38884
Entity Tax Identification Number 25-1440803
Entity Address, Address Line One 1500 Nitterhouse Drive
Entity Address, City or Town Chambersburg
Entity Address, State or Province PA
Entity Address, Postal Zip Code 17201
City Area Code 717
Local Phone Number 264-6116
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common stock
Trading Symbol FRAF
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Entity Central Index Key 0000723646