Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Deferred Tax Assets:
Net Unrealized Losses on Securities Available-for-Sale Included in Accumulated Other Comprehensive Income	$ 4,392	$ 9,427
Allowance for Credit Losses	8,859	9,068
Lease liabilities	2,403	2,539
Pension and Deferred Compensation Plans	3,308	3,460
Other	1,734	773
Total Gross Deferred Tax Assets	20,696	25,267
Valuation Allowance for Deferred Tax Assets	0	0
Total Gross Deferred Tax Assets, Net of Valuation Allowance	20,696	25,267
Deferred Tax Liabilities:
Pension Plans	5,349	5,397
Depreciation	5,515	4,692
ROU assets	2,136	2,298
Deferred Income	3,452	3,524
Prepaid Pension Included in Accumulated Other Comprehensive Income	2,183	1,445
Net Unrealized Gains on Equity Securities	381	241
Goodwill	3,413	3,373
Gain on Cash Flow Hedge Agreements Included in Accumulated Other Comprehensive Income	855	1,620
Other	0	64
Total Gross Deferred Tax Liabilities	23,284	22,654
Deferred Tax Liability, Net	$ (2,588)
Deferred Tax Asset, Net		$ 2,613