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Accumulated Other Comprehensive Income Balances Of Each Component Of Accumulated Other Comprehensive Income, Net Of Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance at January 1	$ 638	$ 200
Other comprehensive (loss) income before calculations	(339)	278
Amounts reclassified from accumulated other comprehensive income	56	160
Net current-period other comprehensive (loss) income	(283)	438
Ending balance	355	638
Unrealized Gains and Losses On Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance at January 1	583	164
Other comprehensive (loss) income before calculations	(339)	259
Amounts reclassified from accumulated other comprehensive income	56	160
Net current-period other comprehensive (loss) income	(283)	419
Ending balance	300	583
Postretirement Benefits Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance at January 1	55	36
Other comprehensive (loss) income before calculations	0	19
Amounts reclassified from accumulated other comprehensive income	0	0
Net current-period other comprehensive (loss) income	0	19
Ending balance	$ 55	$ 55

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Accumulated Other Comprehensive Income (Loss) [Roll Forward]

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Amount, after tax, of accumulated increase (decrease) in equity from transaction and other event and circumstance from nonowner source.

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Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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