Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Deferred Tax Assets:
Net Unrealized Losses on Securities Available-for-Sale Included in Accumulated Other Comprehensive Income	$ 9,427	$ 11,003
Allowance for Credit Losses	9,068	8,475
Lease liabilities	2,539	2,635
Pension and Deferred Compensation Plans	3,460	3,708
Pension Liability Included in Accumulated Other Comprehensive Income	0	1,210
Historic Tax Credit	0	363
Other	773	781
Total Gross Deferred Tax Assets	25,267	28,175
Valuation Allowance for Deferred Tax Assets	0	0
Total Gross Deferred Tax Assets, Net of Valuation Allowance	25,267	28,175
Deferred Tax Liabilities:
Pension Plans	5,397	5,489
Depreciation	4,692	5,094
ROU assets	2,298	2,426
Deferred Income	3,524	3,905
Prepaid Pension Included in Accumulated Other Comprehensive Income	1,445	0
Net Unrealized Gains on Equity Securities	241	207
Goodwill	3,373	3,379
Gain on Cash Flow Hedge Agreements Included in Accumulated Other Comprehensive Income	1,620	590
Other	64	0
Total Gross Deferred Tax Liabilities	22,654	21,090
Deferred Tax Asset, Net	$ 2,613	$ 7,085