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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Loans - Classes of Loans (Details) - USD ($)	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Exclude accrued interest receivable from the amortized cost basis of loans	$ 8,030,000.00	$ 7,650,000
Subtotal	1,865,176,000	1,742,139,000
Less allowance for credit losses	(40,343,000)	(39,651,000)	$ (40,528,000)	$ (40,518,000)
Loans, net	1,824,833,000	1,702,488,000
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	701,460,000	668,122,000
Commercial business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	119,020,000	115,348,000
Construction - commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	120,208,000	69,768,000
Land acquisition and development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	31,355,000	29,064,000
Builder lines
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	21,727,000	24,668,000
Construction - consumer real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	16,481,000	11,223,000
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	308,790,000	293,256,000
Equity lines
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	56,835,000	51,592,000
Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	10,956,000	10,588,000
Amount included related to demand deposit overdrafts	214,000	228,000
Consumer finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	478,344,000	468,510,000
Less allowance for credit losses	(23,423,000)	(23,578,000)	$ (25,187,000)	$ (25,969,000)
Consumer finance \| Automobiles
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	406,833,000	401,276,000
Consumer finance \| Marine and recreational vehicles
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	$ 71,511,000	$ 67,234,000