Other Comprehensive Income - Schedule of Change in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 530,762	$ 442,847	$ 416,137
Comprehensive Income (Loss)	6,442	(52,126)	(15,468)
Ending balance	571,247	530,762	442,847
AOCI Attributable to Parent
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(52,520)	(394)	15,074
Comprehensive Income (Loss)	6,442	(52,126)	(15,468)
Ending balance	(46,078)	(52,520)	(394)
Unrealized gains (losses) on securities available-for-sale
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(54,282)	(706)	15,338
Comprehensive Income (Loss)	6,109	(53,576)	(16,044)
Ending balance	(48,173)	(54,282)	(706)
Amortization of unrealized gains from held-to-maturity securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	875	0
Comprehensive Income (Loss)	591	875
Ending balance	1,466	875	0
Unrealized gains (losses) on postretirement benefits plan
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	768	618	343
Comprehensive Income (Loss)	(139)	150	275
Ending balance	629	768	618
Unrealized gains (losses) on interest rate swap
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	119	(306)	(607)
Comprehensive Income (Loss)	(119)	425	301
Ending balance	$ 0	$ 119	$ (306)