Loans and Allowance for Credit Losses - Amortized Cost and Unpaid Principal of Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	$ 2,202,115		$ 2,129,263
Allowance for credit losses	(22,585)	$ (20,922)	(22,020)	$ (17,694)	$ (17,533)	$ (17,270)
Net loans	2,179,530		2,107,243
Unpaid Principal	2,212,120		2,138,450
Difference	(10,005)		(9,187)
Commercial & industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	486,231		437,922
Allowance for credit losses	(7,508)	(7,387)	(5,800)	(4,047)	(4,052)	(3,438)
Unpaid Principal	488,621		440,163
Difference	(2,390)		(2,241)
Commercial real estate \| Owner occupied properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	445,497		418,092
Allowance for credit losses	(2,271)	(2,442)	(2,944)	(2,963)	(2,893)	(2,867)
Unpaid Principal	447,561		420,060
Difference	(2,064)		(1,968)
Commercial real estate \| Non-owner occupied and multifamily properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	692,573		615,662
Allowance for credit losses	(4,183)	(3,956)	(3,967)	(3,499)	(3,419)	(3,294)
Unpaid Principal	696,766		619,431
Difference	(4,193)		(3,769)
Residential real estate \| 1-4 family residential properties secured by first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	206,825		270,966
Allowance for credit losses	(4,693)	(4,056)	(4,364)	(3,489)	(3,425)	(3,470)
Unpaid Principal	206,905		270,535
Difference	(80)		431
Residential real estate \| 1-4 family residential properties secured by junior liens and revolving secured by 1-4 family first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	60,611		49,160
Allowance for credit losses	(928)	(769)	(775)	(665)	(581)	(551)
Unpaid Principal	60,118		48,857
Difference	493		303
Residential real estate \| 1-4 family residential construction loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	35,777		39,516
Allowance for credit losses	(270)	(219)	(230)	(180)	(159)	(191)
Unpaid Principal	36,005		39,789
Difference	(228)		(273)
Other construction, land development and raw land loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	186,007		212,561
Allowance for credit losses	(2,308)	(1,706)	(3,589)	(2,526)	(2,675)	(3,127)
Unpaid Principal	187,442		214,068
Difference	(1,435)		(1,507)
Obligations of states and political subdivisions in the US
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	31,479		29,471
Allowance for credit losses	(135)	(123)	(106)	(100)	(105)	(80)
Unpaid Principal	31,477		29,468
Difference	2		3
Agricultural production, including commercial fishing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	46,340		45,840
Allowance for credit losses	(197)	(187)	(169)	(157)	(156)	(168)
Unpaid Principal	46,535		46,069
Difference	(195)		(229)
Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	7,663		7,638
Allowance for credit losses	(82)	(71)	(71)	(61)	(60)	(81)
Unpaid Principal	7,570		7,562
Difference	93		76
Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	3,112		2,435
Allowance for credit losses	(10)	$ (6)	(5)	$ (7)	$ (8)	$ (3)
Unpaid Principal	3,120		2,448
Difference	$ (8)		$ (13)

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