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Allowance for Loan Losses - Risk Ratings by Segment (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | $ 968,495 | $ 827,484
Commercial | Real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 576,198 | 442,121
Commercial | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 79,365 | 56,565
Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 264,570 | 285,015
Municipal |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 48,362 | 43,783
1 Strong |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 2,118 | 2,421
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 | 2,118 | 2,402
1 Strong | Municipal |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 0 | 19
2 Above average |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 61,021 | 56,546
2 Above average | Commercial | Real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 6,977 | 5,938
2 Above average | Commercial | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 169 | 2,343
2 Above average | Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 7,328 | 6,326
2 Above average | Municipal |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 46,547 | 41,939
3 Satisfactory |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 162,198 | 199,165
3 Satisfactory | Commercial | Real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 98,473 | 91,475
3 Satisfactory | Commercial | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 2,589 | 2,889
3 Satisfactory | Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 60,787 | 104,432
3 Satisfactory | Municipal |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 349 | 369
4 Average |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 581,056 | 414,786
4 Average | Commercial | Real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 378,147 | 261,539
4 Average | Commercial | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 47,196 | 31,221
4 Average | Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 154,247 | 120,570
4 Average | Municipal |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 1,466 | 1,456
5 Watch |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 156,032 | 137,026
5 Watch | Commercial | Real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 88,679 | 72,840
5 Watch | Commercial | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 29,411 | 19,893
5 Watch | Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 37,942 | 44,293
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 | 3,534 | 2,988
6 OAEM | Commercial | Real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 3,482 | 2,754
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 | 52 | 234
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 | 2,536 | 14,552
7 Substandard | Commercial | Real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 440 | 7,575
7 Substandard | Commercial | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 0 | 219
7 Substandard | Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Risk rated loans receivable | 2,096 | 6,758
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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