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Fair Value Measurements (Financial And Nonfinancial Assets Measured At Fair Value On A Nonrecurring Basis) (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Nonfinancial Assets:    
Other real estate owned, net of allowance $ 607 $ 183
Nonrecurring [Member] | Financial Assets [Member]    
Financial Assets:    
Impaired loans 1,355 3,075
Nonrecurring [Member] | Nonfinancial Assets [Member]    
Nonfinancial Assets:    
Other real estate owned, net of allowance 607 183
Nonrecurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Nonfinancial Assets [Member]    
Nonfinancial Assets:    
Other real estate owned, net of allowance 165  
Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Financial Assets [Member]    
Financial Assets:    
Impaired loans 1,355 3,075
Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Nonfinancial Assets [Member]    
Nonfinancial Assets:    
Other real estate owned, net of allowance $ 442 $ 183