Loans and Allowance for Credit Losses - Activity in ACL Related to Loans Held for Investment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	$ 17,270	$ 13,838
Credit Loss Expense (Benefit)	221	259
Charge-offs	(25)	(14)
Recoveries	67	74
Ending Balance	17,533	14,157
Commercial & industrial loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	3,438	2,914
Credit Loss Expense (Benefit)	554	101
Charge-offs	0	0
Recoveries	60	65
Ending Balance	4,052	3,080
Commercial real estate | Owner occupied properties
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	2,867	3,094
Credit Loss Expense (Benefit)	26	(316)
Charge-offs	0	0
Recoveries	0	0
Ending Balance	2,893	2,778
Commercial real estate | Non-owner occupied and multifamily properties
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	3,294	3,615
Credit Loss Expense (Benefit)	125	(441)
Charge-offs	0	0
Recoveries	0	0
Ending Balance	3,419	3,174
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	3,470	1,413
Credit Loss Expense (Benefit)	(45)	813
Charge-offs	0	0
Recoveries	0	0
Ending Balance	3,425	2,226
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	551	389
Credit Loss Expense (Benefit)	24	(4)
Charge-offs	0	0
Recoveries	6	7
Ending Balance	581	392
Residential real estate | 1-4 family residential construction loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	191	312
Credit Loss Expense (Benefit)	(32)	(52)
Charge-offs	0	0
Recoveries	0	0
Ending Balance	159	260
Other construction, land development and raw land loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	3,127	1,803
Credit Loss Expense (Benefit)	(452)	122
Charge-offs	0	0
Recoveries	0	0
Ending Balance	2,675	1,925
Obligations of states and political subdivisions in the US
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	80	79
Credit Loss Expense (Benefit)	25	27
Charge-offs	0	0
Recoveries	0	0
Ending Balance	105	106
Agricultural production, including commercial fishing
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	168	145
Credit Loss Expense (Benefit)	13	5
Charge-offs	(25)	0
Recoveries	0	0
Ending Balance	156	150
Consumer loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	81	68
Credit Loss Expense (Benefit)	(22)	5
Charge-offs	0	(14)
Recoveries	1	2
Ending Balance	60	61
Other loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	3	6
Credit Loss Expense (Benefit)	5	(1)
Charge-offs	0	0
Recoveries	0	0
Ending Balance	$ 8	$ 5