Quarterly report pursuant to Section 13 or 15(d)

Common Stock, Share-based Awards and Warrants - Warrants by Exercise Price (Details)

v3.8.0.1
Common Stock, Share-based Awards and Warrants - Warrants by Exercise Price (Details)
3 Months Ended
Mar. 31, 2018
$ / shares
shares
Penny Warrants  
Share-based Compensation, Shares Authorized under Equity Instruments Other Than Options, Exercise Price Range [Line Items]  
Number of warrants (in shares) | shares 18,065,775
Weighted Average Exercise price (in usd per share) | $ / shares $ 0.01
Weighted Average Remaining Contractual Term (in years) 9 years 11 months 27 days
Market Warrants  
Share-based Compensation, Shares Authorized under Equity Instruments Other Than Options, Exercise Price Range [Line Items]  
Number of warrants (in shares) | shares 13,000,000
Weighted Average Exercise price (in usd per share) | $ / shares $ 1.57
Weighted Average Remaining Contractual Term (in years) 9 years 11 months 27 days