Loans and Allowance for Credit Losses - Amortized Cost and Unpaid Principal of Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	$ 1,789,497	$ 1,501,785
Allowance for credit losses, loans	(17,270)	(13,838)	$ (11,739)
Unpaid Principal	1,798,053	1,510,395
Difference	(8,556)	(8,610)
Term Modification
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables, modified after twelve months	2,148
Term and payment modifications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables, modified after twelve months	837
Commercial & industrial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	411,387	358,128
Allowance for credit losses, loans	(3,438)	(2,914)	(3,027)
Unpaid Principal	413,293	359,900
Difference	(1,906)	(1,772)
Commercial & industrial loans | Term Modification
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables, modified after twelve months	956
Commercial & industrial loans | Term and payment modifications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables, modified after twelve months	0
Commercial real estate | Owner occupied properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	366,741	349,973
Allowance for credit losses, loans	(2,867)	(3,094)	(3,176)
Unpaid Principal	368,357	351,580
Difference	(1,616)	(1,607)
Commercial real estate | Owner occupied properties | Term Modification
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables, modified after twelve months	0
Commercial real estate | Owner occupied properties | Term and payment modifications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables, modified after twelve months	260
Commercial real estate | Non-owner occupied and multifamily properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	515,528	482,270
Allowance for credit losses, loans	(3,294)	(3,615)	(2,930)
Unpaid Principal	519,115	486,021
Difference	(3,587)	(3,751)
Residential real estate | 1-4 family residential properties secured by first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	203,738	73,381
Allowance for credit losses, loans	(3,470)	(1,413)	(439)
Unpaid Principal	203,534	73,674
Difference	204	(293)
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	33,996	20,259
Allowance for credit losses, loans	(551)	(389)	(215)
Unpaid Principal	33,783	20,103
Difference	213	156
Residential real estate | 1-4 family residential properties secured by junior liens and revolving secured by 1-4 family first liens | Term Modification
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables, modified after twelve months	115
Residential real estate | 1-4 family residential properties secured by junior liens and revolving secured by 1-4 family first liens | Term and payment modifications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables, modified after twelve months	0
Residential real estate | 1-4 family residential construction loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	30,976	44,000
Allowance for credit losses, loans	(191)	(312)	(120)
Unpaid Principal	31,239	44,314
Difference	(263)	(314)
Residential real estate | 1-4 family residential construction loans | Term Modification
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables, modified after twelve months	109
Residential real estate | 1-4 family residential construction loans | Term and payment modifications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables, modified after twelve months	0
Other construction, land development and raw land loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	148,373	99,182
Allowance for credit losses, loans	(3,127)	(1,803)	(1,635)
Unpaid Principal	149,788	100,075
Difference	(1,415)	(893)
Other construction, land development and raw land loans | Term Modification
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables, modified after twelve months	968
Other construction, land development and raw land loans | Term and payment modifications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables, modified after twelve months	577
Obligations of states and political subdivisions in the US
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	30,407	32,539
Allowance for credit losses, loans	(80)	(79)	(32)
Unpaid Principal	30,409	32,540
Difference	(2)	(1)
Agricultural production, including commercial fishing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	41,007	34,099
Allowance for credit losses, loans	(168)	(145)	(91)
Unpaid Principal	41,237	34,263
Difference	(230)	(164)
Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	6,241	4,335
Allowance for credit losses, loans	(81)	(68)	(67)
Unpaid Principal	6,180	4,293
Difference	61	42
Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, amortized cost	1,103	3,619
Allowance for credit losses, loans	(3)	(6)	$ (7)
Unpaid Principal	1,118	3,632
Difference	$ (15)	$ (13)