EQUITY (Tables)

12 Months Ended

Dec. 31, 2017

EQUITY

Schedule of shares of common stock reserved for future issuance

	As of December 31,
	2017	2016
Options to purchase common stock	4,153,055	3,348,310
Employee stock purchase plan	547,276	364,476
Warrants	2,445	2,445
Total	4,702,776	3,715,231