Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation (Details 1)

v3.7.0.1
Stock-based Compensation (Details 1)
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Dividend yield 0.00% 0.00%
Risk-free interest rate, minimum 2.05% 1.24%
Risk-free interest rate, maximum 2.40% 1.78%
Volatility   77.00%
Volatility, minimum 80.00%  
Volatility, maximum 82.00%  
Minimum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected term (in years) 6 years 5 years
Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected term (in years) 10 years 10 years