Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details 3)

v3.8.0.1
Stockholders' Equity (Details 3) - Warrants [Member] - $ / shares
3 Months Ended 12 Months Ended
Mar. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Warrants, Outstanding as of December 31, 2017 5,253,318  
Warrants, Granted 0  
Warrants, Exercised (30,543)  
Warrants, Outstanding as of March 31, 2018 5,222,775 5,253,318
Weighted Average Exercise Price, Outstanding as of December 31, 2017 $ 8.28  
Weighted Average Exercise Price, Granted 0  
Weighted Average Exercise Price, Exercised 3.15  
Weighted Average Exercise Price, Outstanding as of March 31, 2018 $ 8.31 $ 8.28
Weighted Average Remaining Contractual Life, Granted (in years) 0 years  
Weighted Average Remaining Contractual Life, Exercised (in years) 0 years  
Weighted Average Remaining Contractual Life, Outstanding (in years) 3 years 10 months 6 days 3 years 10 months 20 days