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Loans and ACL - Narrative (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Net unamortized deferred loan costs $ 2,989 $ 3,330
Advance in connection with impaired loans 221 43
Financing receivable, modified, subsequent default 0 0
Collateral Pledged    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan Balance $ 4,578 254
Minimum | Risk rating 4    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Delinquency period 10 days  
Minimum | Risk rating 5    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing receivable, threshold period past due 30 days  
Maximum    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing receivable, amortization term 30 years  
Maximum | Risk rating 4    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Delinquency period 30 days  
Maximum | Risk rating 5    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing receivable, threshold period past due 60 days  
Commercial and Agricultural Portfolio Segments    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Maximum percentage of loan 0.80  
Commercial and Agricultural Portfolio Segments | Customer Concentration Risk    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Maximum amount of loans $ 18  
Residential Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Maximum percentage of loan 1  
Maximum percentage of principal, interest, taxes and hazard insurance on property over gross income 0.28  
Maximum percentage of debt servicing over gross income 0.40  
Maximum amount without corporation approval $ 1  
Residential, Privately Insured, Financing Receivable    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Maximum percentage of loan 0.80  
Consumer | Collateral Pledged    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan Balance $ 0 $ 0
Consumer | Maximum    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing receivable, amortization term 15 years