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Loans - Classes of Loans (Details) - USD ($) | Mar. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2023 | Dec. 31, 2022
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Exclude accrued interest receivable from the amortized cost basis of loans | $ 7,830,000 |  |  |
Subtotal | 1,817,427,000 | $ 1,742,139,000 |  |
Less allowance for credit losses | (40,200,000) | (39,651,000) | $ (40,834,000) | $ (40,518,000)
Loans, net | 1,777,227,000 | 1,702,488,000 |  |
Commercial real estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Subtotal | 693,603,000 | 668,122,000 |  |
Commercial business |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Subtotal | 116,236,000 | 115,348,000 |  |
Construction - commercial real estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Subtotal | 96,916,000 | 69,768,000 |  |
Land acquisition and development |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Subtotal | 29,644,000 | 29,064,000 |  |
Builder lines |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Subtotal | 28,363,000 | 24,668,000 |  |
Construction - consumer real estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Subtotal | 12,471,000 | 11,223,000 |  |
Residential mortgage |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Subtotal | 300,178,000 | 293,256,000 |  |
Equity lines |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Subtotal | 54,463,000 | 51,592,000 |  |
Other consumer |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Subtotal | 9,450,000 | 10,588,000 |  |
Amount included related to demand deposit overdrafts | 180,000 | 228,000 |  |
Consumer finance |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Subtotal | 476,103,000 | 468,510,000 |  |
Less allowance for credit losses | (23,566,000) | (23,578,000) | $ (25,875,000) | $ (25,969,000)
Consumer finance | Automobiles |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Subtotal | 407,280,000 | 401,276,000 |  |
Consumer finance | Marine and recreational vehicles |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Subtotal | $ 68,823,000 | $ 67,234,000 |  |

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