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Income Taxes (Summary of Change in Net Deferred Tax Asset) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Income Taxes [Abstract] |  |
Balance at beginning of year | $ 12,574 | $ 11,180
Deferred tax benefit | 975 | 2,013
Other comprehensive income, Available for sale securities | 60 | (827)
Other comprehensive income, Benefit plan | (650) | 208
Balance at end of year | $ 12,959 | $ 12,574

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