Net Income (Loss) per Share (Tables)

9 Months Ended

Sep. 30, 2018

Net Income (Loss) per Share

Schedule of calculation of basic and diluted net loss per share

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017*		2018		2017*
Numerator:
Net income (loss) attributable to common stockholders, basic and diluted	$	10,416	$	6,165	$	(36,704)	$	1,889
Denominator:
Weighted average shares of common stock outstanding, basic		19,217,623		16,699,102		18,989,334		16,483,169
Denominator (diluted):
Weighted average shares of common stock outstanding		19,217,623		16,699,102		18,989,334		16,483,169
Effect of potential dilutive securities:
Weighted average dilutive effect of stock options		1,898,543		1,235,883		—		1,308,202
Weighted average dilutive effect of restricted shares		898,821		711,046		—		607,988
Weighted average dilutive effect of contingently issuable shares		273,886		—		—		—
Weighted average dilutive effect of common shares from warrants		—		—		—		12,441
Weighted average shares of common stock outstanding, diluted		22,288,873		18,646,031		18,989,334		18,411,800
Net income (loss) per share attributable to common stockholders, basic	$	0.54	$	0.37	$	(1.93)	$	0.11
Net income (loss) per share attributable to common stockholders, diluted	$	0.47	$	0.33	$	(1.93)	$	0.10

*As adjusted. See Note 3 for additional information.

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

	Nine Months Ended
	September 30,
	2018
Stock options to purchase common stock	2,566,855
Unvested restricted stock	1,063,681
Contingently issuable shares	142,679
	3,773,215