Income Taxes Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred Tax Assets:
Allowance for Credit Losses	$ 7,440	$ 7,472
Lease liabilities	3,142	2,717
Pension and Deferred Compensation Plans	3,309	3,149
Pension Liability Included in Accumulated Other Comprehensive Income	124	2,439
Historic Tax Credit	1,023	1,394
Net Unrealized Losses on Securities Available-for-Sale Included in Accumulated Other Comprehensive Income	211	0
Other	841	385
Total Gross Deferred Tax Assets	16,090	17,556
Valuation Allowance for Deferred Tax Assets	0	0
Total Gross Deferred Tax Assets, Net of Valuation Allowance	16,090	17,556
Deferred Tax Liabilities:
Pension Plans	5,470	5,368
Depreciation	3,070	3,018
ROU assets	3,005	2,638
Deferred Income	3,778	2,327
Net Unrealized Gains on Equity Securities	160	132
Net Unrealized Gains on Securities Available-for-Sale Included in Accumulated Other Comprehensive Income	0	1,991
Goodwill	3,428	3,474
Gain on Cash Flow Hedge Agreements	453	166
Other	85	0
Total Gross Deferred Tax Liabilities	19,449	19,114
Deferred Tax Liability, Net	$ 3,359	$ 1,558