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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Loans - Balance of Loans (Details) - USD ($)	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Exclude accrued interest receivable from the amortized cost basis of loans	$ 8,530,000	$ 8,270,000
Subtotal	2,008,223,000	1,920,398,000
Less allowance for credit losses	(39,446,000)	(40,087,000)	$ (40,771,000)	$ (39,651,000)
Loans, net	1,968,777,000	1,880,311,000
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	793,765,000	734,182,000
Commercial business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	107,535,000	104,947,000
Construction - commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	119,076,000	132,717,000
Land acquisition and development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	59,722,000	46,072,000
Builder lines
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	43,473,000	35,605,000
Construction - consumer real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	25,366,000	18,799,000
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	314,868,000	308,809,000
Equity lines
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	71,231,000	62,204,000
Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	9,943,000	10,270,000
Amount included related to demand deposit overdrafts	243,000	255,000
Consumer finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	463,244,000	466,793,000
Less allowance for credit losses	(22,276,000)	(22,708,000)	$ (23,238,000)	$ (23,578,000)
Consumer finance \| Automobiles
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	402,535,000	398,651,000
Consumer finance \| Marine and recreational vehicles
Accounts, Notes, Loans and Financing Receivable [Line Items]
Subtotal	$ 60,709,000	$ 68,142,000