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Accumulated Other Comprehensive Loss (Reclassification out of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Interest income on taxable investment securities | $ 990 | $ 1,308
Provision for income tax expense | (1,099) | (522)
Net income | 3,430 | 1,755
Reclassification out of Accumulated Other Comprehensive Loss [Member] |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Net income | (335) | (312)
Investment securities- with OTTI [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Interest income on taxable investment securities | 50 | 50
Provision for income tax expense | (13) | (13)
Net income | 37 | 37
Investment Securities HTM [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Interest income on taxable investment securities | (61) | (72)
Provision for income tax expense | 16 | 19
Net income | (45) | (53)
Pension Plan [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Provision for income tax expense | 100 | 96
Net income | (272) | (262)
Pension Plan [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] | Amortization of Unrecognized Loss [Member] |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Other expense | (372) | (358)
SERP [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Provision for income tax expense | 19 | 12
Net income | (55) | (34)
SERP [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] | Amortization of Unrecognized Loss [Member] |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Other expense | (75) | (47)
SERP [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] | Amortization of Prior Service Costs [Member] |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Salaries and employee benefits | $ 1 | $ 1

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