Common Stock Reserved for Future Issuance (Tables)

3 Months Ended

Mar. 31, 2017

Common Stock Reserved for Future Issuance

Schedule of Common Stock reserved for future issuance

	As of March 31,
	2017	2016
Warrants for the purchase of Common Stock	24,566	36,084
Options to purchase Common Stock	3,681,464	3,141,868
Employee Stock Purchase Plan	523,659	335,484
Total	4,229,689	3,513,436