Net Loss Per Share Attributable to Common Stockholders (Tables)

12 Months Ended

Dec. 31, 2018

Schedule of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders

The following table sets forth the computation of the Company’s basic and diluted net loss per share attributable to common stockholders for the years ended December 31, 2018, 2017 and 2016 (in thousands, except share and per share data):



	2018			2017			2016
Numerator:
Net loss	$	(19,907	)	$	(4,123	)	$	(16,233	)
Less: Premium on repurchase of redeemable convertible preferred stock	—			(6,506		)	—
Net loss attributable to common stockholders	$	(19,907	)	$	(10,629	)	$	(16,233	)
Denominator:
Weighted-average shares used to compute net loss per share attributable to common stockholders, basic and diluted	52,327,518			32,944,714			32,071,604
Net loss per share attributable to common stockholders, basic and diluted	$	(0.38	)	$	(0.32	)	$	(0.51	)

Schedule of Potentially Dilutive Shares Excluded from Computation of Diluted Net Loss Per Share Attributable to Common Stockholders

For the years ended December 31, 2018, 2017 and 2016, the following potentially dilutive shares were excluded from the computation of diluted net loss per share attributable to common stockholders because including them would have been anti-dilutive:



	2018	2017	2016
Options to purchase common stock	23,774,279	23,607,746	20,929,502
Common stock issuable upon conversion of redeemable convertible preferred stock	—	61,279,079	65,464,387
Common stock issuable upon exercise of common stock warrants	898,331	45,286	45,286
Common stock issuable upon exercise and redeemable conversion of preferred stock warrants	—	398,331	481,512
Common stock issuable upon vesting of restricted stock units	288,460	—	—
Total	24,961,070	85,330,442	86,920,687