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Loans and ACL (Narrative) (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2022
USD ($)
Dec. 31, 2022
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Threshold period of continuous performance to return loans to accrual status   6 months    
Advance in connection with impaired loans   $ 0    
Loans and Leases Receivable, Net of Deferred Income   $ 1,334,674   $ 1,264,173
LoanPortfolioClassesAndSegmentsAsPercentageofAggregateLoan   1.0000   1.0000
Pre-Modification Recorded Investment     $ 153  
Extended Maturity and Interest Rate Reduction        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Pre-Modification Recorded Investment     98  
Interest Rate Below Market Reduction [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Pre-Modification Recorded Investment $ 55   $ 55  
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    
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   $ 99,985   $ 78,054
LoanPortfolioClassesAndSegmentsAsPercentageofAggregateLoan   0.0750   0.0617
Total Consumer [Member] | Maximum [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Financing receivable, amortization term   15 years    
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    
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    
Commercial Real Estate, Non-owner Occupied        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Loans and Leases Receivable, Net of Deferred Income   $ 216,675   $ 204,091
LoanPortfolioClassesAndSegmentsAsPercentageofAggregateLoan   0.1623   0.1614
Commercial Real Estate, Non-owner Occupied | 4 - Low satisfactory [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Loans and Leases Receivable, Net of Deferred Income   $ 192,256    
Commercial Real Estate, Non-owner Occupied | 5 - Special mention [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Loans and Leases Receivable, Net of Deferred Income   $ 9,427