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Accumulated Other Comprehensive Income Balances Of Each Component Of Accumulated Other Comprehensive Income, Net Of Tax (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |
Beginning balance |  |  | $ 638 |
Other comprehensive income (loss), net of tax | $ 920 | $ (916) | 450 | $ (955)
Ending balance | 1,088 |  | 1,088 |
Unrealized Gains and Losses On Available-for-Sale Securities |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |
Beginning balance | 113 | 19 | 583 | 164
Other comprehensive (loss) income before calculations | 920 | (984) | 394 | (1,215)
Amounts reclassified from accumulated other comprehensive income | 0 | 74 | 56 | 160
Other comprehensive income (loss), net of tax | 920 | (910) | 450 | (1,055)
Ending balance | 1,033 | (891) | 1,033 | (891)
Postretirement Benefit Plans |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |
Beginning balance | 55 | 142 | 55 | 36
Other comprehensive (loss) income before calculations | 0 | (6) | 0 | 100
Amounts reclassified from accumulated other comprehensive income | 0 | 0 | 0 | 0
Other comprehensive income (loss), net of tax | 0 | (6) | 0 | 100
Ending balance | 55 | 136 | 55 | 136
Accumulated Other Comprehensive Income |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |
Beginning balance | 168 | 161 | 638 | 200
Other comprehensive (loss) income before calculations | 920 | (990) | 394 | (1,115)
Amounts reclassified from accumulated other comprehensive income | 0 | 74 | 56 | 160
Other comprehensive income (loss), net of tax | 920 | (916) | 450 | (955)
Ending balance | $ 1,088 | $ (755) | $ 1,088 | $ (755)

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