v3.2.0.727
Net Loss Per Common Share - Antidilutive securities (Details) - $ / shares
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Net loss per common share—basic and diluted (in Dollars per share) $ (0.14) $ (0.31) $ (0.07) $ (0.38)
Equity Option [Member]        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive securities     7,535,129 5,126,178
Restricted Stock Units (RSUs) [Member]        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive securities     879,393 0