Income Taxes - Components of Net Deferred Tax Asset (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Allowance for credit losses	$ 10,515	$ 9,154
Fair value adjustments – business combination	771	917
Deferred compensation	3,693	3,448
Net operating loss carryover	516	344
Post-retirement benefits	605	647
Unrealized loss on securities held-to-maturity	129	0
Nonaccrual loan interest	476	348
Accrued expenses	579	2,300
Deferred fees and costs	557	997
Unrealized loss on securities available-for-sale	11,308	12,914
Unrealized loss on securities held-to-maturity	1,108	1,265
Operating lease liability	8,509	7,645
Other	453	671
Deferred tax assets	39,219	40,650
Deferred tax liabilities:
Premises and equipment	3,761	3,409
Unrealized gain on equity securities	0	119
Intangibles – section 197	2,487	2,492
Mortgage servicing rights	345	399
Unrealized gain on interest rate swap	0	32
Operating lease asset	8,128	7,397
Other	571	68
Deferred tax liabilities	15,292	13,916
Net deferred tax asset	$ 23,927	$ 26,734