Loans and Allowance for Credit Losses - Activity in ACL Related to Loans Held for Investment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	$ 21,136	$ 19,088
Credit Loss Expense (Benefit)/ Provision (benefit)	(3,779)	2,432
Charge-offs	(1,452)	(1,121)
Recoveries	345	737
Ending Balance	11,739	21,136
Cumulative effect, period of adoption, adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	(4,511)
Ending Balance		(4,511)
Commercial & industrial loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	7,973	6,604
Credit Loss Expense (Benefit)/ Provision (benefit)	(122)	1,680
Charge-offs	(1,452)	(1,021)
Recoveries	253	710
Ending Balance	3,027	7,973
Commercial & industrial loans | Cumulative effect of adoption of accounting principles, legacy segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	(7,973)
Ending Balance		(7,973)
Commercial & industrial loans | Cumulative effect of adoption of accounting principles, revised segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	4,348
Ending Balance		4,348
Real estate construction one-to-four family
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	679	643
Credit Loss Expense (Benefit)/ Provision (benefit)		36
Charge-offs		0
Recoveries		0
Ending Balance		679
Real estate construction one-to-four family | Cumulative effect of adoption of accounting principles, legacy segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	(679)
Ending Balance		(679)
Real estate construction other
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	1,179	1,017
Credit Loss Expense (Benefit)/ Provision (benefit)		162
Charge-offs		0
Recoveries		0
Ending Balance		1,179
Real estate construction other | Cumulative effect of adoption of accounting principles, legacy segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	(1,179)
Ending Balance		(1,179)
Real estate term owner occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	2,625	2,188
Credit Loss Expense (Benefit)/ Provision (benefit)		522
Charge-offs		(85)
Recoveries		0
Ending Balance		2,625
Real estate term owner occupied | Cumulative effect of adoption of accounting principles, legacy segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	(2,625)
Ending Balance		(2,625)
Real estate term non-owner occupied
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	5,133	5,180
Credit Loss Expense (Benefit)/ Provision (benefit)		(47)
Charge-offs		0
Recoveries		0
Ending Balance		5,133
Real estate term non-owner occupied | Cumulative effect of adoption of accounting principles, legacy segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	(5,133)
Ending Balance		(5,133)
Real estate term other
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	779	671
Credit Loss Expense (Benefit)/ Provision (benefit)		106
Charge-offs		0
Recoveries		2
Ending Balance		779
Real estate term other | Cumulative effect of adoption of accounting principles, legacy segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	(779)
Ending Balance		(779)
Consumer secured by 1st deeds of trust
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	261	270
Credit Loss Expense (Benefit)/ Provision (benefit)		(9)
Charge-offs		0
Recoveries		0
Ending Balance		261
Consumer secured by 1st deeds of trust | Cumulative effect of adoption of accounting principles, legacy segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	(261)
Ending Balance		(261)
Consumer other
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	400	436
Credit Loss Expense (Benefit)/ Provision (benefit)		(46)
Charge-offs		(15)
Recoveries		25
Ending Balance		400
Consumer other | Cumulative effect of adoption of accounting principles, legacy segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	(400)
Ending Balance		(400)
Other loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	2,107	2,079
Credit Loss Expense (Benefit)/ Provision (benefit)	4	28
Charge-offs	0	0
Recoveries	0	0
Ending Balance	7	2,107
Other loans | Cumulative effect of adoption of accounting principles, legacy segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	(2,107)
Ending Balance		(2,107)
Other loans | Cumulative effect of adoption of accounting principles, revised segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	3
Ending Balance		3
Commercial real estate | Owner occupied properties
Financing Receivable, Allowance for Credit Loss [Line Items]
Credit Loss Expense (Benefit)/ Provision (benefit)	(412)
Charge-offs	0
Recoveries	9
Ending Balance	3,176
Commercial real estate | Owner occupied properties | Cumulative effect of adoption of accounting principles, revised segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	3,579
Ending Balance		3,579
Commercial real estate | Non-owner occupied and multifamily properties
Financing Receivable, Allowance for Credit Loss [Line Items]
Credit Loss Expense (Benefit)/ Provision (benefit)	(2,014)
Charge-offs	0
Recoveries	0
Ending Balance	2,930
Commercial real estate | Non-owner occupied and multifamily properties | Cumulative effect of adoption of accounting principles, revised segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	4,944
Ending Balance		4,944
Residential real estate | 1-4 family residential properties secured by first liens
Financing Receivable, Allowance for Credit Loss [Line Items]
Credit Loss Expense (Benefit)/ Provision (benefit)	(234)
Charge-offs	0
Recoveries	0
Ending Balance	439
Residential real estate | 1-4 family residential properties secured by first liens | Cumulative effect of adoption of accounting principles, revised segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	673
Ending Balance		673
Residential real estate | 1-4 family residential properties secured by junior liens and revolving secured by 1-4 family first liens
Financing Receivable, Allowance for Credit Loss [Line Items]
Credit Loss Expense (Benefit)/ Provision (benefit)	(242)
Charge-offs	0
Recoveries	38
Ending Balance	215
Residential real estate | 1-4 family residential properties secured by junior liens and revolving secured by 1-4 family first liens | Cumulative effect of adoption of accounting principles, revised segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	419
Ending Balance		419
Residential real estate | 1-4 family residential construction loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Credit Loss Expense (Benefit)/ Provision (benefit)	(334)
Charge-offs	0
Recoveries	0
Ending Balance	120
Residential real estate | 1-4 family residential construction loans | Cumulative effect of adoption of accounting principles, revised segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	454
Ending Balance		454
Other construction, land development and raw land loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Credit Loss Expense (Benefit)/ Provision (benefit)	(359)
Charge-offs	0
Recoveries	0
Ending Balance	1,635
Other construction, land development and raw land loans | Cumulative effect of adoption of accounting principles, revised segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	1,994
Ending Balance		1,994
Obligations of states and political subdivisions in the US
Financing Receivable, Allowance for Credit Loss [Line Items]
Credit Loss Expense (Benefit)/ Provision (benefit)	(12)
Charge-offs	0
Recoveries	0
Ending Balance	32
Obligations of states and political subdivisions in the US | Cumulative effect of adoption of accounting principles, revised segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	44
Ending Balance		44
Agricultural production, including commercial fishing
Financing Receivable, Allowance for Credit Loss [Line Items]
Credit Loss Expense (Benefit)/ Provision (benefit)	11
Charge-offs	0
Recoveries	31
Ending Balance	91
Agricultural production, including commercial fishing | Cumulative effect of adoption of accounting principles, revised segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	49
Ending Balance		49
Consumer loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Credit Loss Expense (Benefit)/ Provision (benefit)	(65)
Charge-offs	0
Recoveries	14
Ending Balance	67
Consumer loans | Cumulative effect of adoption of accounting principles, revised segmentation
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning Balance	$ 118
Ending Balance		$ 118