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Loans (Narrative) (Details) - USD ($)
 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Loans held for sale $ 1,873,000   $ 550,000
Accrued interest receivable 23,541,000   19,371,000
Interest income on nonaccrual loans 0 $ 0  
Estimated interest income 437,000 $ 447,000  
Other Assets [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Accrued interest receivable 20,700,000   16,600,000
Residential Real Estate Loans [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Loans held for sale 1,900,000   550,000
Consumer Overdrafts [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Past due greater than 90 days and still accruing interest $ 6,000   $ 1,000