Loans (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for sale	$ 682,000		$ 550,000
Interest income on nonaccrual loans	0	$ 0
Estimated interest income	122,000	$ 161,000
Other Assets [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest receivable	17,000,000.0		16,600,000
Residential Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for sale	682,000,000		550,000,000
Consumer Overdrafts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due greater than 90 days and still accruing interest	$ 4,000		$ 1,000