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Other Borrowings (Narrative) (Details) - USD ($)
 1 Months Ended 12 Months Ended
Jul. 01, 2022
Jun. 30, 2022
Dec. 29, 2021
Mar. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2026
Short-term Debt [Line Items]              
Short-term Borrowings       $ 14,000,000 $ 0    
Average rate paid on short term borrowings       4.92%      
FHLBA additional credit         19,911,000    
Borrowed amount from FHLBA         33,210,000    
Unsecured Federal Funds Outstanding Amount         $ 0 $ 0  
Pettyjohn, Wood & White, Inc [Member]              
Short-term Debt [Line Items]              
Percentage of capital stock purchased         100.00%    
National Bank of Blacksburg (NBB Note) [Member]              
Short-term Debt [Line Items]              
Proceeds from Issuance of Debt     $ 11,000,000        
Capital notes, interest rate 3.90%   4.00%        
Debt instrument amortization period         15 years    
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid     $ 9,375,000        
Percentage of common stock secured by first priority lien         4.95%    
Capital notes, maturity date Dec. 31, 2026 Dec. 31, 2024          
Capital notes, principal balance         $ 9,300,000 $ 9,890,000  
Community Bankers Bank [Member]              
Short-term Debt [Line Items]              
Available credit         4,950,000    
FHLBA [Member]              
Short-term Debt [Line Items]              
Available credit         $ 242,535,000    
Forecast [Member] | National Bank of Blacksburg (NBB Note) [Member]              
Short-term Debt [Line Items]              
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid             $ 8,104,000