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Stock-Based Compensation (Summary Of Changes In Company's Nonvested Restricted Shares) (Details) - Restricted Stock [Member] - $ / shares
9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Shares, Nonvested at, Beginning 102,916  
Shares, Granted 19,660  
Shares, Vested (27,697)  
Shares, Forfeited (5,234) (2,177)
Shares, Nonvested at, Ending 89,645  
Weighted Average Grant date Fair Value, Nonvested at, Beginning $ 13.11  
Weighted Average Grant date Fair Value, Granted 10.02  
Weighted Average Grant date Fair Value, Vested 13.13  
Weighted Average Grant date Fair Value, Forfeited 12.81  
Weighted Average Grant date Fair Value, Nonvested at, Ending $ 12.44