Income Taxes - Schedule of Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Allowance for credit losses	$ 5,476	$ 5,414
OREO	0	7
Accrued pension and post-retirement	689	718
Unrealized loss on securities available for sale	8,331	11,343
Unrealized loss on derivative instruments	905	1,020
Unrealized loss on securities transferred from available for sale to held to maturity	10	12
Restricted stock grants	349	367
Core deposit intangible	21	25
Investment in flow through entities	144	141
Other assets	22	26
Total deferred tax asset	15,947	19,073
Net deferred loan costs	(2,900)	(2,826)
Depreciation	(2,266)	(2,253)
Goodwill	(424)	(371)
Mortgage servicing rights	(348)	(398)
Unrealized gain on derivative instruments	(905)	(1,062)
Prepaid expense	(273)	(292)
Total deferred tax liability	(7,116)	(7,202)
Net deferred tax asset	$ 8,831	$ 11,871