Net Income (Loss) per Share (Tables)

9 Months Ended

Sep. 30, 2017

Net Income (Loss) per Share

Schedule of calculation of basic and diluted net income (loss) per share

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2017		2016		2017		2016
Numerator:
Net income (loss)	$	7,695	$	(142)	$	3,350	$	(219)
Decretion of redeemable convertible preferred stock		—		2,641		—		2,439
Undistributed income attributable to redeemable convertible preferred stockholders		—		(1,271)		—		(1,140)
Net income (loss) attributable to common stockholders, basic	$	7,695	$	1,228	$	3,350	$	1,080
Decretion of redeemable convertible preferred stock		—		(2,641)		—		(2,439)
Revaluation of warrant liability, net of tax		—		(661)		—		(675)
Adjustment to undistributed income attributable to redeemable convertible preferred stockholders		—		1,271		—		1,140
Net income (loss) attributable to common stockholders, diluted	$	7,695	$	(803)	$	3,350	$	(894)
Denominator (basic):
Weighted average shares of common stock outstanding, basic		16,699,102		4,918,885		16,483,169		4,817,285
Denominator (diluted):
Weighted average shares of common stock outstanding		16,699,102		4,918,885		16,483,169		4,817,285
Effect of potential dilutive securities:
Weighted average dilutive effect of stock options		1,235,883		—		1,308,202		—
Weighted average dilutive effect of restricted shares		711,046				607,988		—
Weighted average dilutive effect of common shares from warrants		—		—		12,441		—
Dilutive effect from preferred stock and preferred stock warrants assuming conversion		—		5,414,838		—		5,414,765
Weighted average shares of common stock outstanding, diluted		18,646,031		10,333,723		18,411,800		10,232,050
Net income per share attributable to common stockholders, basic	$	0.46	$	0.25	$	0.20	$	0.22
Net income (loss) per share attributable to common stockholders, diluted	$	0.41	$	(0.08)	$	0.18	$	(0.09)

Schedule of shares excluded from the calculation of diluted net loss per share attributable to common stockholders

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2017	2016	2017	2016
Stock options to purchase common stock	—	2,723,193	—	2,723,193
Restricted stock	—	722,646	—	722,646
Common stock warrants	—	213,806	—	213,806
	—	3,659,645	—	3,659,645