Quarterly report pursuant to Section 13 or 15(d)

Net Loss per Share (Details Textual)

v3.10.0.1
Net Loss per Share (Details Textual) - $ / shares
1 Months Ended 6 Months Ended
May 25, 2018
Jun. 30, 2018
Jan. 31, 2018
Jan. 09, 2018
Aug. 31, 2017
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price $ 0.35 $ 0.35      
Class of Warrant or Right, Exercise Price of Warrants or Rights   0.31 $ 1.10 $ 1.10 $ 1.50
Warrant [Member] | Minimum [Member]          
Class of Warrant or Right, Exercise Price of Warrants or Rights   0.31      
Warrant [Member] | Maximum [Member]          
Class of Warrant or Right, Exercise Price of Warrants or Rights   7.43      
Employee Stock Option [Member] | Minimum [Member]          
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price   0.31      
Employee Stock Option [Member] | Maximum [Member]          
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price   $ 4.50