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Loans - Loan Portfolio by Class (Details) - USD ($) | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | $ 1,717,729,000 | $ 1,635,718,000
90+ Days Past Due and Accruing | 440,000 |
Loans on nonaccrual status | 1,376,000 | 1,189,000
30-59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 14,383,000 |
Loans on nonaccrual status | 9,000 |
60-89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 2,231,000 |
90+ Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 1,666,000 |
Loans on nonaccrual status | 1,230,000 |
Total Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 18,280,000 |
Current |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 1,699,449,000 |
Loans on nonaccrual status | 141,000 |
Commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 645,467,000 | 592,301,000
90+ Days Past Due and Accruing | 160,000 |
Loans on nonaccrual status | 264,000 |
Commercial real estate | 30-59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 614,000 |
Commercial real estate | 90+ Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 424,000 |
Commercial real estate | Total Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 1,038,000 |
Commercial real estate | Current |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 644,429,000 |
Commercial business |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 118,641,000 | 118,605,000
Commercial business | 30-59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 52,000 |
Commercial business | 60-89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 30,000 |
Commercial business | Total Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 82,000 |
Commercial business | Current |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 118,559,000 |
Construction - commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 62,994,000 | 49,136,000
Construction - commercial real estate | Current |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 62,994,000 |
Land acquisition and development |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 28,400,000 | 37,537,000
Land acquisition and development | Current |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 28,400,000 |
Builder lines |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 30,787,000 | 34,538,000
Builder lines | Current |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 30,787,000 |
Construction - consumer real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 12,046,000 | 10,539,000
Construction - consumer real estate | 30-59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 282,000 |
Construction - consumer real estate | Total Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 282,000 |
Construction - consumer real estate | Current |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 11,764,000 |
Residential mortgage |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 290,325,000 | 266,267,000
90+ Days Past Due and Accruing | 280,000 |
Loans on nonaccrual status | 141,000 | 156,000
Residential mortgage | 30-59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 633,000 |
Residential mortgage | 60-89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 71,000 |
Residential mortgage | 90+ Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 280,000 |
Residential mortgage | Total Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 984,000 |
Residential mortgage | Current |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 289,341,000 |
Equity lines |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 48,027,000 | 43,300,000
Loans on nonaccrual status | 60,000 | 108,000
Equity lines | 30-59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 268,000 |
Equity lines | 60-89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 9,000 |
Equity lines | 90+ Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 51,000 |
Equity lines | Total Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 328,000 |
Equity lines | Current |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 47,699,000 |
Other consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 9,867,000 | 8,938,000
Other consumer | Current |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 9,867,000 |
Consumer finance |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 471,175,000 |
Consumer finance | Automobiles |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 403,154,000 | 411,112,000
Loans on nonaccrual status | 831,000 | 842,000
Consumer finance | Automobiles | 30-59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 12,233,000 |
Consumer finance | Automobiles | 60-89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 2,121,000 |
Consumer finance | Automobiles | 90+ Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 831,000 |
Consumer finance | Automobiles | Total Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 15,185,000 |
Consumer finance | Automobiles | Current |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 387,969,000 |
Consumer finance | Marine and recreational vehicles |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 68,021,000 | 63,445,000
Loans on nonaccrual status | 80,000 | $ 83,000
Consumer finance | Marine and recreational vehicles | 30-59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 301,000 |
Consumer finance | Marine and recreational vehicles | 90+ Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 80,000 |
Consumer finance | Marine and recreational vehicles | Total Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | 381,000 |
Consumer finance | Marine and recreational vehicles | Current |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, gross | $ 67,640,000 |

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