Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Common Share (Details)

v3.7.0.1
Net Loss Per Common Share (Details) - shares
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 12,441,071 11,380,150
Stock Options [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 7,073,282 7,198,456
Warrants [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 4,541,121 3,365,407
Non-vested Restricted Stock [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 826,668 816,287