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Accumulated Other Comprehensive Loss (Schedule of accumulated other comprehensive loss activity) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Balance | $ 108,132 | $ 125,969
Balance | $ 110,717 | $ 117,293
Income tax rate | 21.00% | 21.00%
Accumulated Other Comprehensive Loss |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Balance | $ (32,189) | $ (6,635)
Other comprehensive income (loss) before reclassifications | 2,221 | (10,939)
Period change | 2,221 | (10,939)
Balance | (29,968) | (17,574)
Defined Benefit Pension Plan |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Balance | (3,997) | (3,901)
Balance | (3,997) | (3,901)
Unrealized (losses) gains on available for sale securities |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Balance | (28,192) | (2,734)
Other comprehensive income (loss) before reclassifications | 2,221 | (10,939)
Period change | 2,221 | (10,939)
Balance | $ (25,971) | $ (13,673)

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