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Loans - Nonaccrual Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020 | Sep. 30, 2020
--- | --- | --- | ---
Schedule of Financing Receivables [Line Items] |  |  |
Nonaccrual loans | $ 6,145 | $ 6,721 | $ 9,111
Commercial | Real estate |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Nonaccrual loans | 604 | 543 | 1,771
Commercial | Construction |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Nonaccrual loans | 23 | 89 | 307
Commercial | Other |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Nonaccrual loans | 1,251 | 1,481 | 503
Municipal |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Nonaccrual loans | 0 | 0 | 0
Residential | Construction |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Nonaccrual loans | 0 | 0 | 0
Residential | Term |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Nonaccrual loans | 3,785 | 3,593 | 4,467
Home equity line of credit |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Nonaccrual loans | 482 | 1,015 | 2,063
Consumer |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Nonaccrual loans | $ 0 | $ 0 | $ 0

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