Quarterly report pursuant to Section 13 or 15(d)

Stock-based Activity (Details 1)

v3.10.0.1
Stock-based Activity (Details 1) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Total stock-based compensation expense $ 268,615 $ 1,013,736 $ 1,307,162 $ 4,516,372
Research and Development Expense [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Total stock-based compensation expense 96,157 292,523 340,979 989,884
General and Administrative Expense [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Total stock-based compensation expense $ 172,458 $ 721,213 $ 966,183 $ 3,526,488