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Loans and ACL (Narrative) (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 2024
USD ($)
Mar. 31, 2023
USD ($)
Dec. 31, 2023
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Advance in connection with impaired loans $ 0    
Loans and Leases Receivable, Net of Deferred Income $ 1,365,508   $ 1,349,463
LoanPortfolioClassesAndSegmentsAsPercentageofAggregateLoan 1.0000   1.0000
Threshold period of continuous performance to return loans to accrual status 6 months    
Financing Receivable, Troubled Debt Restructuring [Line Items]      
Financing Receivable, Modified, Subsequent Default $ 0 $ 0  
Collateral Pledged      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Financing Receivable, Individually Evaluated for Impairment $ 1,168   $ 1,083
Minimum [Member] | 4 - Low satisfactory [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Delinquency period 10 days    
Minimum [Member] | 5 - Special mention [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Delinquency period 30 days    
Maximum [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Financing receivable, amortization term 30 years    
Maximum [Member] | 4 - Low satisfactory [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Delinquency period 30 days    
Maximum [Member] | 5 - Special mention [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Delinquency period 60 days    
Commercial And Agricultural Portfolio Segment [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Maximum percentage of loan 0.80    
Commercial And Agricultural Portfolio Segment [Member] | Customer Concentration Risk [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Maximum amount of loans $ 18,000    
Residential Real Estate [Member]      
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 $ 1,000    
Residential, Privately Insured, Financing Receivable [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Maximum percentage of loan 0.80    
Total Consumer [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Maximum days of consumer loan charged off 180 days    
Loans and Leases Receivable, Net of Deferred Income $ 98,063   $ 100,528
LoanPortfolioClassesAndSegmentsAsPercentageofAggregateLoan 0.0718   0.0745
Total Consumer [Member] | Collateral Pledged      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Financing Receivable, Individually Evaluated for Impairment $ 0   $ 0
Total Consumer [Member] | Maximum [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Financing receivable, amortization term 15 years    
Commercial, Agricultural, and Residential Portfolio Segments [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Number of days past due (or more), accrual of interest discontinued 90 days