Benefit Plans (Schedule Of Amounts Recognized In Balance Sheet) (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 16,515	$ 14,521	$ 13,962
Asset allocations, percent	100.00%	100.00%
Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 16,515	$ 14,521
Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocations, percent	2.00%	3.00%
Cash and Cash Equivalents [Member] \| Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 336	$ 473
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocations, percent	27.00%	29.00%
Equity Securities [Member] \| Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 4,474	$ 4,256
Corporate Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocations, percent	15.00%	17.00%
Corporate Bonds [Member] \| Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 2,515	$ 2,470
Municipal Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocations, percent	18.00%	24.00%
Municipal Bonds [Member] \| Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 2,952	$ 3,469
Investment Fund-Debt [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocations, percent	15.00%	6.00%
Investment Fund-Debt [Member] \| Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 2,460	$ 856
Investment Fund-Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocations, percent	20.00%	18.00%
Investment Fund-Equity [Member] \| Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 3,260	$ 2,623
Deposit In Immediate Participation Guarantee Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocations, percent	3.00%	2.00%
Deposit In Immediate Participation Guarantee Contract [Member] \| Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 505	$ 361
Cash Surrender Value of Life Insurance [Member] \| Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	13	13
Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	11,035	8,569
Level 1 [Member] \| Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	336	473
Level 1 [Member] \| Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	4,474	4,256
Level 1 [Member] \| Investment Fund-Debt [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	2,460	856
Level 1 [Member] \| Investment Fund-Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	3,260	2,623
Level 1 [Member] \| Deposit In Immediate Participation Guarantee Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	505	361
Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	5,467	5,939
Level 2 [Member] \| Corporate Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	2,515	2,470
Level 2 [Member] \| Municipal Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	2,952	3,469
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	13	13
Level 3 [Member] \| Cash Surrender Value of Life Insurance [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 13	$ 13

FRANKLIN FINANCIAL SERVICES CORP /PA/ 10-K