Quarterly report pursuant to Section 13 or 15(d)

Warrant Liability - Assumptions Used and Summary of Warrant Liability (Details)

v3.8.0.1
Warrant Liability - Assumptions Used and Summary of Warrant Liability (Details) - $ / shares
9 Months Ended 12 Months Ended
Mar. 24, 2017
Feb. 14, 2017
Sep. 30, 2017
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Risk-free interest rate       0.00%
Volatility rate       0.00%
Expected life (years)       0 years
Dividend yield     0.00% 0.00%
Warrant        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]        
Number of Shares Under Warrant, Balance at January 1, 2017     0  
Number of shares under warrant, granted   8,235,923 8,235,923  
Number of shares under warrant, exercised (596,300)   (2,703,434)  
Number of shares under warrant, expired     (5,087,717)  
Number of Shares Under Warrant, Balance at September 30, 2017     444,772 0
Number of Shares Under Warrant, Vested and Exercisable at September 30, 2017     444,772  
Weighted Average Grant Date Fair Value        
Weighted Average Exercise Price, Balance at January 1, 2017 (in dollars per share)     $ 0.00  
Weighted Average Exercise Price, Granted (in dollars per share)     1.43  
Weighted Average Exercise Price, Exercised (in dollars per share)     1.46  
Weighted Average Exercise Price, Expired (in dollars per share)     1.40  
Weighted Average Exercise Price, Vested and Exercisable at September 30, 2017 (in dollars per share)     1.46  
Weighted Average Exercise Price, Balance at September 30, 2017 (in dollars per share)     $ 1.46  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]        
Weighted Average Remaining Contractual Life, Balance (in years)     4 years 7 months 17 days 0 years
Weighted Average Remaining Contractual Life, Granted (in years)     1 year 7 months 6 days  
Weighted Average Remaining Contractual Life, Exercised (in years)     0 years  
Weighted Average Remaining Contractual Life, Expired (in years)     0 years  
Weighted Average Remaining Contractual Life, Vested and Exercisable at September 30, 2017 (in years)     4 years 7 months 17 days  
Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Risk-free interest rate     1.86%  
Volatility rate     160.11%  
Expected life (years)     5 years  
Maximum | Warrant        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]        
Range of Warrant Price Per Share, Granted (in dollars per share)     $ 1.50  
Range of Warrant Price Per Share, Vested and Exercisable at September 30, 2017 (in dollars per share)     $ 1.50  
Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Risk-free interest rate     1.68%  
Volatility rate     80.00%  
Expected life (years)     6 months  
Minimum | Warrant        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]        
Range of Warrant Price Per Share, Granted (in dollars per share)     $ 1.35  
Range of Warrant Price Per Share, Vested and Exercisable at September 30, 2017 (in dollars per share)     $ 1.35