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Share-based Compensation (Details 2) - Restricted Stock
9 Months Ended
Sep. 30, 2017
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of Restricted Shares, Outstanding at beginning of year | shares 98,439
Number of Restricted Shares, Granted | shares 207,350
Number of Restricted Shares, Vested | shares (42,189)
Number of Restricted Shares, Forfeited | shares (5,000)
Number of Restricted Shares, Outstanding at end of year | shares 258,600
Grant-Date Fair Value, Outstanding at beginning of year | $ / shares $ 1.90
Grant-Date Fair Value, Granted | $ / shares 1.76
Grant-Date Fair Value, Vested | $ / shares 1.90
Grant-Date Fair Value, Forfeited | $ / shares 1.76
Grant-Date Fair Value, Outstanding at end of year | $ / shares $ 1.79