Quarterly report pursuant to Section 13 or 15(d)

Series B Warrants (Details)

v3.7.0.1
Series B Warrants (Details) - Series B Warrants - $ / shares
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Class of Warrant or Right [Line Items]    
Dividend yield 0.00% 0.00%
Volatility factor 70.00% 70.00%
Risk-free interest rate 1.58%  
Expected term (years) 3 years 1 month 24 days  
Weighted-average fair value of warrants $ 0.17 $ 0.13
Maximum    
Class of Warrant or Right [Line Items]    
Risk-free interest rate   1.29%
Expected term (years)   4 years 1 month 24 days
Minimum    
Class of Warrant or Right [Line Items]    
Risk-free interest rate   1.11%
Expected term (years)   4 years 1 month 21 days