v3.26.1
Accumulated Other Comprehensive Loss (Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Balance $ 631,670 $ 628,854 $ 589,928 $ 568,984 $ 628,854 $ 568,984
Net current period other comprehensive (loss) income (4,022) (6,297) (219) 10,609 (10,319) 10,390
Balance 643,441 631,670 601,668 589,928 643,441 601,668
Hedging Derivative Instruments [Member]            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Balance 1,189 1,329 2,445 3,085 1,329 3,085
Other comprehensive income (loss) before reclassifications (213)   (409)   (353) (1,049)
Amounts reclassified from accumulated other comprehensive income 0   0   0 0
Net current period other comprehensive (loss) income (213)   (409)   (353) (1,049)
Balance 976 1,189 2,036 2,445 976 2,036
Securities Available-For-Sale and Transferred Securities [Member]            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Balance (32,790) (26,605) (34,790) (45,935) (26,605) (45,935)
Other comprehensive income (loss) before reclassifications (3,844)   81   (9,792) 11,217
Amounts reclassified from accumulated other comprehensive income 6   6   (231) 15
Net current period other comprehensive (loss) income (3,838)   87   (10,023) 11,232
Balance (36,628) (32,790) (34,703) (34,790) (36,628) (34,703)
Pension And Post-Retirement Obligations [Member]            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Balance (7,726) (7,754) (9,650) (9,754) (7,754) (9,754)
Other comprehensive income (loss) before reclassifications 0   0   0 0
Amounts reclassified from accumulated other comprehensive income 29   103   57 207
Net current period other comprehensive (loss) income 29   103   57 207
Balance (7,697) (7,726) (9,547) (9,650) (7,697) (9,547)
Accumulated Other Comprehensive (Loss) Income [Member]            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Balance (39,327) (33,030) (41,995) (52,604) (33,030) (52,604)
Other comprehensive income (loss) before reclassifications (4,057)   (328)   (10,145) 10,168
Amounts reclassified from accumulated other comprehensive income 35   109   (174) 222
Net current period other comprehensive (loss) income (4,022) (6,297) (219) 10,609 (10,319) 10,390
Balance $ (43,349) $ (39,327) $ (42,214) $ (41,995) $ (43,349) $ (42,214)