Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation and Warrants (Details Textual)

v3.10.0.1
Stock-Based Compensation and Warrants (Details Textual) - USD ($)
3 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation arrangement by share-based payment award, options, grants in period, gross 1,125,000  
Stock-based compensation $ 877,951 $ 1,507,699
Stock Issued During Period, Shares, Share-based Compensation, Forfeited 1,702,767  
Employees and Directors | General and Administrative Expense [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock-based compensation $ 748,342 1,208,744
Employees and Directors | Research and Development Expense [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock-based compensation 129,609 $ 298,955
Employee Stock Option    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock-based compensation $ 3,994,793  
Warrant    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Class of warrant or right, number of securities called by warrants or rights 15,624  
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 1.00