Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation and Warrants (Details 4)

v3.10.0.1
Stock-Based Compensation and Warrants (Details 4) - $ / shares
1 Months Ended 12 Months Ended
Oct. 10, 2014
Nov. 18, 2016
Dec. 31, 2018
Dec. 31, 2017
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Closing stock price $ 61.25   $ 0.56 $ 17.85
Expected dividends 0.00%   0.00% 0.00%
Expected volatility 95.00%   110.00% 80.00%
Risk free interest rate 1.39%   2.60% 1.86%
Expected life of warrant 5 years   9 months 14 days 1 year 9 months 14 days
Series A Warrants [Member]        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Closing stock price   $ 31.15 $ 0.56 $ 17.85
Expected dividends   0.00% 0.00% 0.00%
Expected volatility   85.00% 92.50% 80.00%
Risk free interest rate   1.58% 2.50% 1.97%
Expected life of warrant   4 years 1 year 10 months 24 days 2 years 10 months 24 days
Series B Warrants [Member]        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Closing stock price   $ 31.15    
Expected dividends   0.00%    
Expected volatility   85.00%    
Risk free interest rate   0.81%    
Expected life of warrant   1 year 1 month 6 days