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Share Based Payments (Details) - $ / shares
9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]    
Nonvested options - beginning of period 401,440  
Nonvested options granted 7,000  
Nonvested options vested or forfeited (18,145)  
Nonvested options - end of period 390,295  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]    
Nonvested options - beginning of period $ 7.14  
Nonvested options granted 8.04 $ 6.50
Nonvested options vested or forfeited 7.01  
Nonvested options - end of period $ 7.16