Net Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2015

Net Loss Per Share

Schedule of shares excluded from the calculation where the inclusion would be anti-dilutive

	Three Months Ended March 31,
	2015	2014
Redeemable convertible preferred stock	—	12,516,298
Options to purchase common stock	3,224,052	2,282,591
Warrants to purchase redeemable convertible preferred stock	—	147,484
Total	3,224,052	14,946,373