Loans and Allowance for Credit Losses - Amortized Cost and Unpaid Principal of Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	$ 1,501,785	$ 1,413,886
Allowance for credit losses, loans	(13,838)	(11,739)	$ (16,625)
Unpaid Principal	1,510,395	1,425,429
Difference	(8,610)	(11,543)
Commercial & industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	358,128	448,338
Allowance for credit losses, loans	(2,914)	(3,027)	(4,348)
Unpaid Principal	359,900
Difference	(1,772)
Commercial & industrial loans | Cumulative effect, period of adoption, adjusted balance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost		448,338
Unpaid Principal		454,106
Difference		(5,768)
Commercial real estate | Owner occupied properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	349,973	300,200
Allowance for credit losses, loans	(3,094)	(3,176)	(3,579)
Unpaid Principal	351,580
Difference	(1,607)
Commercial real estate | Owner occupied properties | Cumulative effect, period of adoption, adjusted balance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost		300,200
Unpaid Principal		301,623
Difference		(1,423)
Commercial real estate | Non-owner occupied and multifamily properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	482,270	435,311
Allowance for credit losses, loans	(3,615)	(2,930)	(4,944)
Unpaid Principal	486,021
Difference	(3,751)
Commercial real estate | Non-owner occupied and multifamily properties | Cumulative effect, period of adoption, adjusted balance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost		435,311
Unpaid Principal		438,631
Difference		(3,320)
Residential real estate | 1-4 family residential properties secured by first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	73,381	32,542
Allowance for credit losses, loans	(1,413)	(439)	(673)
Unpaid Principal	73,674
Difference	(293)
Residential real estate | 1-4 family residential properties secured by first liens | Cumulative effect, period of adoption, adjusted balance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost		32,542
Unpaid Principal		32,602
Difference		(60)
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]
Loans, amortized cost	20,259	19,610
Unpaid Principal	20,103
Difference	156
Residential real estate | 1-4 family residential properties secured by junior liens and revolving secured by 1-4 family first liens | Cumulative effect, period of adoption, adjusted balance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost		19,610
Unpaid Principal		19,489
Difference		121
Residential real estate | 1-4 family residential construction loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	44,000	36,222
Allowance for credit losses, loans	(312)	(120)	(454)
Unpaid Principal	44,314
Difference	(314)
Residential real estate | 1-4 family residential construction loans | Cumulative effect, period of adoption, adjusted balance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost		36,222
Unpaid Principal		36,542
Difference		(320)
Other construction, land development and raw land loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	99,182	88,094
Allowance for credit losses, loans	(1,803)	(1,635)	(1,994)
Unpaid Principal	100,075
Difference	(893)
Other construction, land development and raw land loans | Cumulative effect, period of adoption, adjusted balance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost		88,094
Unpaid Principal		88,604
Difference		(510)
Obligations of states and political subdivisions in the US
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	32,539	16,403
Allowance for credit losses, loans	(79)	(32)	(44)
Unpaid Principal	32,540
Difference	(1)
Obligations of states and political subdivisions in the US | Cumulative effect, period of adoption, adjusted balance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost		16,403
Unpaid Principal		16,565
Difference		(162)
Agricultural production, including commercial fishing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	34,099	27,959
Allowance for credit losses, loans	(145)	(91)	(49)
Unpaid Principal	34,263
Difference	(164)
Agricultural production, including commercial fishing | Cumulative effect, period of adoption, adjusted balance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost		27,959
Unpaid Principal		28,082
Difference		(123)
Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	4,335	4,801
Allowance for credit losses, loans	(68)	(67)	(118)
Unpaid Principal	4,293
Difference	42
Consumer loans | Cumulative effect, period of adoption, adjusted balance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost		4,801
Unpaid Principal		4,763
Difference		38
Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	3,619	4,406
Allowance for credit losses, loans	(6)	(7)	$ (3)
Unpaid Principal	3,632
Difference	$ (13)
Other loans | Cumulative effect, period of adoption, adjusted balance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost		4,406
Unpaid Principal		4,422
Difference		$ (16)