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Comprehensive Income (Loss) (Schedule of Components of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Total accumulated other comprehensive income (loss) | $ 3,634 | $ (11,961)
Unrealized Gain (Loss) on Securities Available for Sale |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Total accumulated other comprehensive income (loss) | 7,327 | (12,390)
Deferred tax asset (liability) | (1,684) | 2,896
Total accumulated other comprehensive income (loss) | 5,643 | (9,494)
Additional Pension Asset (Liability) |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Total accumulated other comprehensive income (loss) | (2,609) | (3,220)
Deferred tax asset (liability) | 600 | 753
Total accumulated other comprehensive income (loss) | (2,009) | (2,467)
Total |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Total accumulated other comprehensive income (loss) | $ 3,634 | $ (11,961)

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