Loans and Allowance for Credit Losses - Activity in ACL Related to Loans Held for Investment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	$ 13,838	$ 11,739
Credit Loss Expense (Benefit)	259	(167)
Charge-offs	(14)	(295)
Recoveries	74	33
Ending Balance	14,157	11,310
Commercial & industrial loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	2,914	3,027
Credit Loss Expense (Benefit)	101	156
Charge-offs	0	(295)
Recoveries	65	13
Ending Balance	3,080	2,901
Commercial real estate | Owner occupied properties
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	3,094	3,176
Credit Loss Expense (Benefit)	(316)	(663)
Charge-offs	0	0
Recoveries	0	0
Ending Balance	2,778	2,513
Commercial real estate | Non-owner occupied and multifamily properties
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	3,615	2,930
Credit Loss Expense (Benefit)	(441)	133
Charge-offs	0	0
Recoveries	0	0
Ending Balance	3,174	3,063
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	1,413	439
Credit Loss Expense (Benefit)	813	71
Charge-offs	0	0
Recoveries	0	0
Ending Balance	2,226	510
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	389	215
Credit Loss Expense (Benefit)	(4)	74
Charge-offs	0	0
Recoveries	7	12
Ending Balance	392	301
Residential real estate | 1-4 family residential construction loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	312	120
Credit Loss Expense (Benefit)	(52)	90
Charge-offs	0	0
Recoveries	0	0
Ending Balance	260	210
Other construction, land development and raw land loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	1,803	1,635
Credit Loss Expense (Benefit)	122	(85)
Charge-offs	0	0
Recoveries	0	0
Ending Balance	1,925	1,550
Obligations of states and political subdivisions in the US
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	79	32
Credit Loss Expense (Benefit)	27	20
Charge-offs	0	0
Recoveries	0	0
Ending Balance	106	52
Agricultural production, including commercial fishing
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	145	91
Credit Loss Expense (Benefit)	5	29
Charge-offs	0	0
Recoveries	0	8
Ending Balance	150	128
Consumer loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	68	67
Credit Loss Expense (Benefit)	5	8
Charge-offs	(14)	0
Recoveries	2	0
Ending Balance	61	75
Other loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	6	7
Credit Loss Expense (Benefit)	(1)	0
Charge-offs	0	0
Recoveries	0	0
Ending Balance	$ 5	$ 7