Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation and Warrants (Details 3)

v3.8.0.1
Stock-Based Compensation and Warrants (Details 3) - $ / shares
1 Months Ended 12 Months Ended
Nov. 18, 2016
Dec. 31, 2017
Dec. 31, 2016
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Closing stock price $ 1.75 $ 0.51 $ 0.76
Expected dividends 0.00% 0.00% 0.00%
Expected volatility 95.00% 80.00% 95.00%
Risk free interest rate 1.39% 1.86% 1.41%
Expected life of warrant 5 years 1 year 9 months 14 days 2 years 9 months 14 days
Series A Warrants [Member]      
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Closing stock price $ 0.89 $ 0.51 $ 0.76
Expected dividends 0.00% 0.00% 0.00%
Expected volatility 85.00% 80.00% 85.00%
Risk free interest rate 1.58% 1.97% 1.67%
Expected life of warrant 4 years 2 years 10 months 24 days 3 years 10 months 24 days
Series B Warrants [Member]      
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Closing stock price $ 0.89   $ 0.76
Expected dividends 0.00%   0.00%
Expected volatility 85.00%   90.00%
Risk free interest rate 0.81%   0.85%
Expected life of warrant 1 year 1 month 6 days   1 year