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Loans (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for sale	$ 2,252,000		$ 2,252,000		$ 2,280,000
Residential Real Estate Mortgages Serviced For Others	289,200,000		289,200,000		280,800,000
Accrued interest receivable	25,738,000		25,738,000		23,748,000
Interest income on nonaccrual loans	0	$ 0	0	$ 0
Estimated interest income	195,000	$ 324,000	822,000	$ 519,000
Other Assets [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest receivable	21,500,000		21,500,000		19,900,000
Residential Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for sale	2,300,000		2,300,000		2,300,000
Consumer Overdrafts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due greater than 90 days and still accruing interest	$ 0		$ 0		$ 35,000

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