Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation (Details 1)

v3.8.0.1
Share-Based Compensation (Details 1) - USD ($)
$ / shares in Units, $ in Thousands
 6 Months Ended 12 Months Ended
Dec. 31, 2017
Jun. 30, 2016
Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock Options, Outstanding at beginning of the period 13,548,334    
Stock Options, Granted 50,000    
Stock Options, Forfeited/expired (42,500)    
Stock Options, Outstanding at end of the period 13,555,834    
Vested and, as of December 31, 2017, expected to vest 13,513,517    
Exercisable as of December 31, 2017 11,256,688    
Weighted-average Exercise Price, Outstanding at beginning of the period $ 1.21    
Weighted-average Exercise Price, Granted 0.39    
Weighted-average Exercise Price, Forfeited/expired 0.40    
Weighted-average Exercise Price, Outstanding at end of the period 1.21    
Vested and, as of December 31, 2017, expected to vest 1.21    
Weighted-average Exercise Price, Exercisable $ 1.27    
Weighted-average Remaining Contractual Term (in years), Outstanding 5 years 4 months 24 days 5 years 9 months 18 days  
Weighted-average Remaining Contractual Term (in years), Vested and, as of December 31, 2017, expected to vest 5 years 4 months 24 days    
Weighted-average Remaining Contractual Term (in years), Exercisable as of December 31, 2017 4 years 8 months 12 days    
Aggregate Intrinsic Value ,Outstanding $ 0   $ 138
Aggregate Intrinsic Value, Vested and, as of December 31, 2017, expected to vest 0    
Aggregate Intrinsic Value, Exercisable as of December 31, 2017 $ 0