Other Comprehensive Income - Schedule of Change in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 610,695	$ 571,247	$ 530,762
Comprehensive Income (Loss)	12,908	2,505	6,442
Ending balance	872,127	610,695	571,247
AOCI Attributable to Parent
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(43,573)	(46,078)	(52,520)
Comprehensive Income (Loss)	12,908	2,505	6,442
Ending balance	(30,665)	(43,573)	(46,078)
Unrealized gains on securities available-for-sale
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(46,458)	(48,173)	(54,282)
Comprehensive Income (Loss)	13,504	1,715	6,109
Ending balance	(32,954)	(46,458)	(48,173)
Amortization of unrealized gains from held-to-maturity securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	2,011	1,466	875
Comprehensive Income (Loss)	475	545	591
Ending balance	2,486	2,011	1,466
Unrealized gains (losses) on postretirement benefits plan
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	874	629	768
Comprehensive Income (Loss)	(506)	245	(139)
Ending balance		874	629
Unrealized gains (losses) on postretirement benefits plan | Other Postretirement Benefits Plan [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	874
Comprehensive Income (Loss)	(506)
Ending balance	368	874
Unrealized gains (losses) on postretirement benefits plan | Pension Plan
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	0
Comprehensive Income (Loss)	(565)
Ending balance	(565)	0
Unrealized gains (losses) on pension plan
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Comprehensive Income (Loss)	(565)	0	0
Unrealized losses on interest rate swap
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		0	119
Comprehensive Income (Loss)	$ 0	$ 0	(119)
Ending balance			$ 0