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Accumulated Other Comprehensive Income (Loss) (Summary of Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance $ 181,070,000 $ 167,085,000
Other comprehensive income 14,227,000 10,005,000
Ending balance 213,508,000 181,070,000
Accumulated Other Comprehensive Income (Loss) [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance (47,348,000) (57,353,000)
Other comprehensive income 14,227,000 10,005,000
Ending balance (33,121,000) (47,348,000)
Amount Reclassified From Accumulated Other Comprehensive Income (Loss) [Member] | Unrealized Gains (Losses) On Available-For-Sale Securities [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance (47,842,000) (57,931,000)
Other comprehensive income (loss) before reclassification (1,460,000) 9,924,000
Amount reclassified from accumulated other comprehensive loss 15,770,000 165,000
Other comprehensive income 14,310,000 10,089,000
Ending balance (33,532,000) (47,842,000)
Amount Reclassified From Accumulated Other Comprehensive Income (Loss) [Member] | Unrealized gain on pension liability [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance 494,000 578,000
Other comprehensive income (loss) before reclassification (83,000) (84,000)
Other comprehensive income (83,000) (84,000)
Ending balance 411,000 494,000
Amount Reclassified From Accumulated Other Comprehensive Income (Loss) [Member] | Accumulated Other Comprehensive Income (Loss) [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance (47,348,000) (57,353,000)
Other comprehensive income (loss) before reclassification (1,543,000) 9,840,000
Amount reclassified from accumulated other comprehensive loss 15,770,000 165,000
Other comprehensive income 14,227,000 10,005,000
Ending balance $ (33,121,000) $ (47,348,000)