v2.4.0.8
Net Loss per Share (Details 2) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Numerator        
Net loss attributable to common stockholders $ (7,337) $ (10,220) $ (25,071) $ (23,035)
Denominator:        
Weighted-average common shares outstanding, basic and diluted (in shares) 40,269,937 7,415,777 29,209,970 7,401,842
Net loss per share attributable to common stockholders, basic and diluted (in dollars per share) $ (0.18) $ (1.38) $ (0.86) $ (3.11)