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Allowance for Loan Losses - Risk Ratings by Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	$ 1,126,556	$ 968,495	$ 952,116
1 Strong
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	2,266	2,118	2,442
2 Above Average
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	77,009	61,021	55,326
3 Satisfactory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	159,573	162,198	174,474
4 Average
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	712,946	581,056	558,911
5 Watch
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	171,804	156,032	142,683
6 OAEM
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	1,017	3,534	3,931
7 Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	1,941	2,536	14,349
8 Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	0	0	0
Commercial |    Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	638,708	576,198	550,077
Commercial |    Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	129,036	79,365	73,302
Commercial |    Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	310,110	264,570	288,121
Commercial | 1 Strong |    Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	0	0	0
Commercial | 1 Strong |    Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	0	0	0
Commercial | 1 Strong |    Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	2,266	2,118	2,434
Commercial | 2 Above Average |    Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	7,506	6,977	9,220
Commercial | 2 Above Average |    Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	141	169	175
Commercial | 2 Above Average |    Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	23,364	7,328	7,144
Commercial | 3 Satisfactory |    Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	116,378	98,473	92,596
Commercial | 3 Satisfactory |    Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	1,802	2,589	1,831
Commercial | 3 Satisfactory |    Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	40,189	60,787	79,693
Commercial | 4 Average |    Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	423,914	378,147	355,252
Commercial | 4 Average |    Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	85,195	47,196	47,003
Commercial | 4 Average |    Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	202,337	154,247	155,189
Commercial | 5 Watch |    Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	89,568	88,679	79,885
Commercial | 5 Watch |    Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	41,898	29,411	24,293
Commercial | 5 Watch |    Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	40,338	37,942	38,505
Commercial | 6 OAEM |    Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	955	3,482	3,899
Commercial | 6 OAEM |    Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	0	0	0
Commercial | 6 OAEM |    Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	62	52	32
Commercial | 7 Substandard |    Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	387	440	9,225
Commercial | 7 Substandard |    Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	0	0	0
Commercial | 7 Substandard |    Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	1,554	2,096	5,124
Commercial | 8 Doubtful |    Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	0	0	0
Commercial | 8 Doubtful |    Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	0	0	0
Commercial | 8 Doubtful |    Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	0	0	0
Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	48,702	48,362	40,616
Municipal | 1 Strong
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	0	0	8
Municipal | 2 Above Average
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	45,998	46,547	38,787
Municipal | 3 Satisfactory
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	1,204	349	354
Municipal | 4 Average
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	1,500	1,466	1,467
Municipal | 5 Watch
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	0	0	0
Municipal | 6 OAEM
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	0	0	0
Municipal | 7 Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	0	0	0
Municipal | 8 Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Risk rated loans receivable	$ 0	$ 0	$ 0

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