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Share-Based Payments (Details 3) - Restricted Stock
6 Months Ended
Jun. 30, 2017
$ / shares
shares
Shares  
Restricted shares outstanding at January 1, 2017 | shares 228,550
Granted | shares 400,000
Forfeited | shares (60,000)
Vested | shares (105,215)
Restricted shares outstanding at June30, 2017 | shares 463,335
Weighted-average fair value  
Restricted shares outstanding at January 1, 2017 | $ / shares $ 1.75
Granted | $ / shares 2.05
Forfeited | $ / shares 1.49
Vested | $ / shares 1.72
Restricted shares outstanding at June30, 2017 | $ / shares $ 2.05