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Accumulated Other Comprehensive Loss (Components of Comprehensive Income) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Net unrealized gains (losses), before tax | $ (143) | $ 1,501
Income tax (credit)/expense related to other comprehensive income | 32 | (396)
Other comprehensive (loss)/income, net of tax | (111) | 1,105
Accumulated Other Comprehensive Loss |  |
Unrealized net gains (losses), net of tax | (284) | 846
Recognized gains (losses), net of tax | (173) | (259)
Other comprehensive (loss)/income, net of tax | (111) | 1,105
Investment securities- with OTTI [Member] |  |
Unrealized holding (losses)/gains on investments | 8 | 210
Recognized gains (losses), before tax | 50 | 50
Net unrealized gains (losses), before tax | (42) | 160
Unrealized tax (expense) benefit | (2) | (55)
Income tax (credit)/expense related to other comprehensive income | 11 | (42)
Unrealized net gains (losses), net of tax | 6 | 155
Recognized gains (losses), net of tax | 37 | 37
Other comprehensive (loss)/income, net of tax | (31) | 118
Investment securities- with OTTI [Member] | Accretable Yield in Income [Member] |  |
Recognized gains (losses), before tax | 50 |
Recognized tax (expense) benefit | (13) |
Recognized gains (losses), net of tax | 37 |
Investment securities- with OTTI [Member] | Amortization of Recognized Income [Member] |  |
Recognized gains (losses), before tax |  | 50
Recognized tax (expense) benefit |  | (13)
Recognized gains (losses), net of tax |  | 37
Investment securities- all other [Member] |  |
Unrealized holding (losses)/gains on investments | 1,849 | (623)
Net unrealized gains (losses), before tax | 1,849 | (623)
Unrealized tax (expense) benefit |  | 164
Income tax (credit)/expense related to other comprehensive income | (492) |
Unrealized net gains (losses), net of tax |  | (459)
Other comprehensive (loss)/income, net of tax | 1,357 |
Investment Securities HTM [Member] |  |
Recognized gains (losses), before tax | (154) | (160)
Net unrealized gains (losses), before tax | 154 | 160
Income tax (credit)/expense related to other comprehensive income | (41) | (42)
Recognized gains (losses), net of tax | (113) | (118)
Other comprehensive (loss)/income, net of tax | 113 | 118
Investment Securities HTM [Member] | Amortization of Recognized Income [Member] |  |
Recognized gains (losses), before tax | (154) | (160)
Recognized tax (expense) benefit | 41 | 42
Recognized gains (losses), net of tax | (113) | (118)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] |  |
Net unrealized gains (losses), before tax | (108) | 73
Income tax (credit)/expense related to other comprehensive income | 23 | (19)
Unrealized net gains (losses), net of tax | (85) | 54
Other comprehensive (loss)/income, net of tax | (85) | 54
Net Pension Plan |  |
Unrealized holding (losses)/gains on investments | (2,128) | 1,489
Recognized gains (losses), before tax | (132) | (203)
Net unrealized gains (losses), before tax | (1,996) | 1,692
Net Pension Plan | Pension |  |
Unrealized holding (losses)/gains on investments | (2,128) | 1,489
Net unrealized gains (losses), before tax | (1,996) | 1,692
Unrealized tax (expense) benefit | 566 | (393)
Income tax (credit)/expense related to other comprehensive income | 531 | (447)
Unrealized net gains (losses), net of tax | (1,562) | 1,096
Recognized gains (losses), net of tax | (97) | (149)
Other comprehensive (loss)/income, net of tax | (1,465) | 1,245
Net Pension Plan | SERP |  |
Net unrealized gains (losses), before tax |  | 39
Income tax (credit)/expense related to other comprehensive income |  | (10)
Recognized gains (losses), net of tax |  | (29)
Other comprehensive (loss)/income, net of tax |  | 29
Net Pension Plan | Amortization of Unrecognized Loss [Member] | Pension |  |
Recognized gains (losses), before tax | (132) | (203)
Recognized tax (expense) benefit | 35 | 54
Recognized gains (losses), net of tax | $ (97) | (149)
Net Pension Plan | Amortization of Unrecognized Gain [Member] | SERP |  |
Recognized gains (losses), before tax |  | (39)
Recognized tax (expense) benefit |  | 10
Recognized gains (losses), net of tax |  | $ (29)

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