Net Loss per Share (Tables)

12 Months Ended

Dec. 31, 2019

Net Loss per Share

Schedule of net loss per share, basic and diluted

The following table shows the calculation of net loss per share (in thousands, except share and per share data):

	Year Ended December 31,
	2019		2018		2017
Numerator:
Net loss - basic and diluted	$	(46,672)	$	(46,939)	$	(55,663)
Denominator:
Weighted average common shares outstanding		29,364,535		27,686,909		20,958,557
Less: weighted average common shares subject to repurchase		(14,725)		(176,949)		(470,051)
Weighted average common shares outstanding used to compute basic and diluted net loss per share		29,349,810		27,509,960		20,488,506
Net loss per share, basic and diluted	$	(1.59)	$	(1.71)	$	(2.72)

Schedule of antidilutive securities excluded from calculation of diluted net loss per share

	Year Ended December 31,
	2019	2018	2017
Common stock subject to repurchase	—	43,076	319,203
Outstanding options	5,643,410	3,778,259	3,013,394
Total shares of common stock equivalents	5,643,410	3,821,335	3,332,597