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Stock-Based Compensation (Nonvested Restricted Shares Activity) (Details) - Restricted Stock [Member] - $ / shares
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Nonvested shares, beginning balance 69,324  
Nonvested shares, granted 33,788  
Nonvested shares, vested
Nonvested shares, forfeited (2,177) (7,999)
Nonvested shares, ending balance 100,935  
Nonvested, weighted average grant date fair value, beginning balance $ 11.91  
Nonvested, weighted average grant date fair value, granted 12.81  
Nonvested, weighted average grant date fair value, vested  
Nonvested, weighted average grant date fair value, forfeited 11.92  
Nonvested, weighted average grant date fair value, ending balance $ 12.21