NET LOSS PER SHARE (Tables)

12 Months Ended

Dec. 31, 2016

Schedule of Calculation of Basic and Diluted Net Income (Loss) per Share

The following table presents the computation of basic and diluted net loss per share allocable to common stockholders:



	Year Ended December 31,
	2016			2015			2014
	(in thousands, except for share and per share data)
Numerator:
Net loss	$	(36,911	)	$	(44,218	)	$	(29,037	)
Denominator:
Weighted-average shares used to compute net loss per share, basic and diluted	50,332,872			47,323,253			36,097,405
Net loss per share:
Basic and diluted	$	(0.73	)	$	(0.93	)	$	(0.80	)

Schedule of Antidilutive Securities Excluded from the Computation of Diluted Net Loss Per Share

The Company excluded the following period-end outstanding common stock equivalents from the computation of diluted net loss per share for the periods presented because including them would have been antidilutive:



	Year Ended December 31,
	2016	2015	2014
Shares of common stock issuable under the Equity Incentive Plan	10,585,444	10,589,268	9,776,124
Common stock subject to repurchase	—	—	27,000
Common stock issuable upon exercise of warrants	—	73,883	107,876
Employee Stock Purchase Plan	99,680	133,113	106,184
Total	10,685,124	10,796,264	10,017,184