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 9 Months Ended
May 15, 2017
Jan. 04, 2017
May 25, 2018
Sep. 30, 2018
Jul. 31, 2018
Jun. 29, 2018
Jun. 28, 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 $ 1.30 $ 3.74 $ 0.35              
Class of Warrant or Right, Exercise Price of Warrants or Rights       $ 0.31 $ 0.3725 $ 0.3725 $ 0.3725 $ 1.10 $ 1.10 $ 1.50
Warrant [Member] | Maximum [Member]                    
Class of Warrant or Right, Exercise Price of Warrants or Rights       7.43            
Warrant [Member] | Minimum [Member]                    
Class of Warrant or Right, Exercise Price of Warrants or Rights       0.29            
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            
Employee Stock Option [Member] | Minimum [Member]                    
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price       $ 0.18