Quarterly report pursuant to Section 13 or 15(d)

Stock Warrants (Details)

v3.19.2
Stock Warrants (Details) - $ / shares
1 Months Ended
Oct. 01, 2018
Dec. 26, 2017
Dec. 31, 2018
Dec. 31, 2017
Oct. 10, 2014
Closing stock price     $ 0.56 $ 17.85 $ 61.25
Closing Stock Price [Member]          
Closing stock price $ 0.88 $ 18.55      
Expected Dividends [Member]          
Warrants, Measurement Input 0.00% 0.00%      
Expected Volatility [Member]          
Warrants, Measurement Input 90.00% 85.00%      
Risk Free Interest Rate [Member]          
Warrants, Measurement Input 3.01% 2.42%      
Expected Life Of Warrant [Member]          
Expected life of warrant (years) 5 years 4 years 11 months 1 day