Loans and Allowance for Credit Losses - Activity in ACL Related to Loans Held for Investment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	$ 17,694	$ 15,645	$ 17,270	$ 13,838
Credit Loss Expense (Benefit)	1,738	750	2,094	2,519
Charge-offs	(15)	(91)	(40)	(154)
Recoveries	111	187	204	288
Ending Balance	19,528	16,491	19,528	16,491
Commercial & industrial loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	4,047	3,418	3,438	2,914
Credit Loss Expense (Benefit)	153	(55)	684	412
Charge-offs	0	(91)	0	(140)
Recoveries	104	181	182	267
Ending Balance	4,304	3,453	4,304	3,453
Commercial real estate | Owner occupied properties
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	2,963	2,807	2,867	3,094
Credit Loss Expense (Benefit)	(42)	(15)	54	(302)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending Balance	2,921	2,792	2,921	2,792
Commercial real estate | Non-owner occupied and multifamily properties
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	3,499	3,260	3,294	3,615
Credit Loss Expense (Benefit)	273	(36)	478	(391)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending Balance	3,772	3,224	3,772	3,224
Residential real estate | 1-4 family residential properties secured by first liens
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	3,489	3,206	3,470	1,413
Credit Loss Expense (Benefit)	571	334	590	2,127
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending Balance	4,060	3,540	4,060	3,540
Residential real estate | 1-4 family residential properties secured by junior liens and revolving secured by 1-4 family first liens
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	665	423	551	389
Credit Loss Expense (Benefit)	62	78	166	100
Charge-offs	0	0	0	0
Recoveries	6	5	16	17
Ending Balance	733	506	733	506
Residential real estate | 1-4 family residential construction loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	180	206	191	312
Credit Loss Expense (Benefit)	62	(31)	51	(137)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending Balance	242	175	242	175
Other construction, land development and raw land loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	2,526	1,996	3,127	1,803
Credit Loss Expense (Benefit)	639	480	38	673
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending Balance	3,165	2,476	3,165	2,476
Obligations of states and political subdivisions in the US
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	100	88	80	79
Credit Loss Expense (Benefit)	0	(11)	20	(2)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending Balance	100	77	100	77
Agricultural production, including commercial fishing
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	157	162	168	145
Credit Loss Expense (Benefit)	(3)	2	7	19
Charge-offs	0	0	(25)	0
Recoveries	1	0	5	0
Ending Balance	155	164	155	164
Consumer loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	61	74	81	68
Credit Loss Expense (Benefit)	25	4	4	21
Charge-offs	(15)	0	(15)	(14)
Recoveries	0	1	1	4
Ending Balance	71	79	71	79
Other loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	7	5	3	6
Credit Loss Expense (Benefit)	(2)	0	2	(1)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending Balance	$ 5	$ 5	$ 5	$ 5