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Fair Value Measurements and Fair Values of Financial Instruments (Narrative) (Details) - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2023
Dec. 31, 2024
Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Total Loans Receivable $ 2,726,523,000 $ 3,317,402,000 $ 3,033,784,000  
Allowance for credit losses 33,691,000 33,608,000 34,789,000 $ 32,373,000
Other real estate owned, net 15,077,000 7,000    
Impaired loans 6,593,000 $ 4,229,000 11,817,000  
Fair Value, Recurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Liabilities 0   0  
(Level 3) Significant Unobservable Inputs [Member] | Impaired Loans [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Valuation allowance 6,600,000   11,800,000  
Impaired loans $ 26,800,000   $ 31,200,000