Net Income (Loss) Per Share Attributable to Common Stockholders (Tables)

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Reconciliation of the Numerator and Denominator used in Computing Basic and Diluted Net Income (Loss) Per Share Attributable to Common Stockholders

For the periods presented, the following table provides a reconciliation of the numerator and denominator used in computing basic and diluted net income (loss) per share attributable to common stockholders (in thousands, except per share amounts):

	Three Months Ended						For the Nine Months Ended
	September 30,						September 30,
	2016			2015			2016			2015
Numerator:
Net income (loss)	$	808		$	13		$	(1,776	)	$	82
Less: Accretion of preferred stock		(608	)		(2,826	)		(6,258	)		(8,476	)
Net income (loss) attributable to common stockholders —    basic and diluted	$	200		$	(2,813	)	$	(8,034	)	$	(8,394	)
Denominator:
Weighted-average common shares outstanding		15,460			4,065			8,117			3,997
Weighted-average unvested shares of common stock subject    to repurchase		(142	)		(161	)		(126	)		(184	)
Weighted-average shares used to compute net income (loss)    per share attributable to common stockholders — basic		15,318			3,904			7,991			3,813
Effects of potentially dilutive securities:
Weighted-average unvested shares of common stock     subject to repurchase		141			—			—			—
Stock options		1,400			—			—			—
Weighted-average shares used to compute net income (loss)    per share attributable to common stockholders — diluted		16,859			3,904			7,991			3,813
Net income (loss) per share attributable to common     stockholders:
Basic	$	0.01		$	(0.72	)	$	(1.01	)	$	(2.20	)
Diluted	$	0.01		$	(0.72	)	$	(1.01	)	$	(2.20	)

Computation of Diluted Net Income (Loss) Per Share Attributable to Common Stockholders Effect in Antidilutive

For the periods presented, the following outstanding options, warrants and shares of preferred stock were excluded from the computation of diluted net income (loss) per share attributable to common stockholders for the periods presented because their effect would have been antidilutive (in thousands):

	Three Months Ended				For the Nine Months Ended
	September 30,				September 30,
	2016		2015		2016		2015
Redeemable convertible preferred stock		—		7,885		—		7,885
Common stock warrants		—		25		—		25
Redeemable convertible preferred stock warrants		—		264		—		264
Unvested shares of common stock subject to repurchase		—		154		141		154
Stock options		35		2,158		2,272		2,158