Income Taxes Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred Tax Assets:
Net Unrealized Losses on Securities Available-for-Sale Included in Accumulated Other Comprehensive Income	$ 16,914	$ 211
Allowance for Credit Losses	8,199	7,440
Lease liabilities	2,821	3,142
Pension and Deferred Compensation Plans	3,571	3,309
Pension Liability Included in Accumulated Other Comprehensive Income	1,692	124
Historic Tax Credit	749	1,023
Other	745	841
Total Gross Deferred Tax Assets	34,691	16,090
Valuation Allowance for Deferred Tax Assets	0	0
Total Gross Deferred Tax Assets, Net of Valuation Allowance	34,691	16,090
Deferred Tax Liabilities:
Pension Plans	5,606	5,470
Depreciation	3,165	3,070
ROU assets	2,646	3,005
Deferred Income	3,266	3,778
Net Unrealized Gains on Equity Securities	272	160
Goodwill	3,416	3,428
Gain on Cash Flow Hedge Agreements	1,404	453
Other	0	85
Total Gross Deferred Tax Liabilities	19,775	19,449
Deferred Tax Asset (Liability), Net	$ 14,916
Deferred Tax Asset (Liability), Net		$ (3,359)