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Allowance for Loan Losses - Risk Ratings by Segment (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | $ 1,153,225 | $ 968,495
Commercial | Real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 699,340 | 576,198
Commercial | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 93,907 | 79,365
Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 319,359 | 264,570
Municipal |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 40,619 | 48,362
1 Strong |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 2,215 | 2,118
1 Strong | Commercial | Real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 0 | 0
1 Strong | Commercial | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 0 | 0
1 Strong | Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 2,215 | 2,118
1 Strong | Municipal |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 0 | 0
2 Above average |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 67,247 | 61,021
2 Above average | Commercial | Real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 5,702 | 6,977
2 Above average | Commercial | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 0 | 169
2 Above average | Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 23,624 | 7,328
2 Above average | Municipal |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 37,921 | 46,547
3 Satisfactory |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 192,550 | 162,198
3 Satisfactory | Commercial | Real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 125,721 | 98,473
3 Satisfactory | Commercial | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 1,018 | 2,589
3 Satisfactory | Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 64,613 | 60,787
3 Satisfactory | Municipal |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 1,198 | 349
4 Average |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 705,881 | 581,056
4 Average | Commercial | Real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 459,087 | 378,147
4 Average | Commercial | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 57,920 | 47,196
4 Average | Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 187,374 | 154,247
4 Average | Municipal |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 1,500 | 1,466
5 Watch |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 183,390 | 156,032
5 Watch | Commercial | Real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 108,302 | 88,679
5 Watch | Commercial | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 34,969 | 29,411
5 Watch | Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 40,119 | 37,942
5 Watch | Municipal |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 0 | 0
6 OAEM |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 229 | 3,534
6 OAEM | Commercial | Real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 144 | 3,482
6 OAEM | Commercial | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 0 | 0
6 OAEM | Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 85 | 52
6 OAEM | Municipal |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 0 | 0
7 Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 1,713 | 2,536
7 Substandard | Commercial | Real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 384 | 440
7 Substandard | Commercial | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 0 | 0
7 Substandard | Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 1,329 | 2,096
7 Substandard | Municipal |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 0 | 0
8 Doubtful |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 0 | 0
8 Doubtful | Commercial | Real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 0 | 0
8 Doubtful | Commercial | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 0 | 0
8 Doubtful | Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 0 | 0
8 Doubtful | Municipal |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | $ 0 | $ 0

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