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Summary Of Significant Accounting Policies (Narrative) (Details)
 12 Months Ended
Dec. 31, 2024
USD ($)
segment
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Summary Of Significant Accounting Policies [Line Items]        
Maximum maturing period for cash and cash equivalents 90 days      
Duration of loans interest stops accruing 90 days      
Duration of consecutive payments before future payments assured 6 months      
Loans held for investment, net of allowances $ 636,552,000 $ 601,921,000    
Unrecognized tax liabilities $ 0 0    
Number of reportable segments | segment 3      
Advertising expense $ 768,000,000 919,000,000    
Retained earnings 42,804,000 36,678,000    
Other than temporarily impairment     $ 0  
Allowance for credit losses on available for sale securities 0 0    
Interest Receivable 3,065,000 2,835,000    
Intangible asset, net of amortization $ 6,725,000 7,285,000    
Consumer Loan [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Duration of loans charged-off 120 days      
Consumer Revolving Credit Loan [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Duration of loans charged-off 180 days      
Commercial And Commercial Real Estate Loans [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Duration of loans charged-off 180 days      
Available-for-sale Debt securities [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Interest Receivable $ 1,150,000 1,143,000    
Loans [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Interest Receivable 1,912,000 1,688,000    
Securities Held to Maturity [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Interest Receivable $ 1,154,000 1,147,000    
Equipment [Member] | Maximum [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Estimated useful life 7 years      
Equipment [Member] | Minimum [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Estimated useful life 3 years      
Building and Improvements [Member] | Maximum [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Estimated useful life 39 years 6 months      
Building and Improvements [Member] | Minimum [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Estimated useful life 10 years      
Cumulative Effect, Period of Adoption, Adjustment [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Retained earnings   (1,599,000,000)    
Pettyyjohn, Wood & White, Inc. [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Assets acquisition consideration transferred in amortizable intangible assets       $ 8,406,000
Amortizable period of intangible assets       15 years
Annual amortization of intangible asset $ 560,000      
Intangible asset, net of amortization 6,725,000      
Commercial Agricultural Loans [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Loans held for investment, net of allowances $ 4,172,000 $ 3,024,000