v3.4.0.3
Net Loss per Share (Details 2) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Numerator    
Net loss $ (3,380) $ (5,468)
Denominator:    
Weighted-average shares of common stock outstanding, basic and diluted 45,953,082 40,978,741
Net loss per share, basic and diluted (in dollars per share) $ (0.07) $ (0.13)