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Accumulated Other Comprehensive Loss (Reclassification out of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |
Interest income on taxable investment securities | $ 1,792 |  |  | $ 1,587 |  |  | $ 5,339 | $ 4,533
Provision for income tax expense | (1,321) |  |  | (2,677) |  |  | (4,099) | (6,286)
Net income | 4,513 | $ 4,414 | $ 4,375 | 6,936 | $ 5,428 | $ 5,715 | 13,302 | 18,079
Reclassification out of Accumulated Other Comprehensive Loss [Member] |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |
Net income | (283) |  |  | (385) |  |  | (846) | (1,053)
OTTI | Reclassification out of Accumulated Other Comprehensive Loss [Member] |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |
Provision for income tax expense | (12) |  |  | (14) |  |  | (37) | (41)
Net income | 39 |  |  | 37 |  |  | 115 | 111
OTTI | Reclassification out of Accumulated Other Comprehensive Loss [Member] | Accretable Yield in Income [Member] |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |
Interest income on taxable investment securities | 51 |  |  | 51 |  |  | 152 | 152
Investment securities- all other [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |
Provision for income tax expense |  |  |  |  |  |  |  | (1)
Net income |  |  |  |  |  |  |  | 2
Investment securities- all other [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] | Recognition of Gains (Losses) In Income [Member] |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |
Net gains |  |  |  |  |  |  |  | 3
Investment Securities HTM [Member] | Recognition of Gains (Losses) In Income [Member] |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |
Net gains |  |  |  | 93 |  |  |  |
Investment Securities HTM [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |
Provision for income tax expense | 38 |  |  | 60 |  |  | 121 | 147
Net income | (129) |  |  | (167) |  |  | (392) | (404)
Investment Securities HTM [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] | Recognition of Gains (Losses) In Income [Member] |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |
Net gains |  |  |  |  |  |  |  | 93
Investment Securities HTM [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] | Amortization of Unrecognized Loss [Member] |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |
Interest income on taxable investment securities | (167) |  |  | (320) |  |  | (513) | (644)
Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] | Pension [Member] |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |
Provision for income tax expense | 57 |  |  | 74 |  |  | 177 | 224
Net income | (194) |  |  | (205) |  |  | (573) | (613)
Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] | SERP [Member] |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |
Provision for income tax expense | (1) |  |  | 18 |  |  | (2) | 54
Net income | 1 |  |  | (50) |  |  | 4 | (149)
Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] | Amortization of Unrecognized Loss [Member] | Pension [Member] |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |
Other expense |  |  |  |  |  |  | (750) | (837)
Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] | Amortization of Unrecognized Loss [Member] | SERP [Member] |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |
Other expense | 2 |  |  | (68) |  |  | $ 6 | $ (203)
Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] | Amortization of Unrecognized Loss [Member] | Pension [Member] |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |
Other expense | $ (251) |  |  | $ (279) |  |  |  |

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