Net (Loss) Income per Share (Tables)

9 Months Ended

Sep. 30, 2019

Net (Loss) Income per Share

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

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2019		2018		2019		2018
Numerator (basic and diluted):
Net (loss) income	$	(8,104)	$	10,416	$	(25,612)	$	(36,704)
Denominator (basic):
Weighted average shares of common stock outstanding, basic		20,691,112		19,217,623		20,520,357		18,989,334
Denominator (diluted):
Weighted average shares of common stock outstanding		20,691,112		19,217,623		20,520,357		18,989,334
Effect of potential dilutive securities:
Weighted average dilutive effect of stock options		—		1,898,543		—		—
Weighted average dilutive effect of restricted shares		—		898,821		—		—
Weighted average dilutive effect of contingently issuable shares		—		273,886		—		—
Weighted average shares of common stock outstanding, diluted		20,691,112		22,288,873		20,520,357		18,989,334
Net (loss) income per share, basic	$	(0.39)	$	0.54	$	(1.25)	$	(1.93)
Net (loss) income per share, diluted	$	(0.39)	$	0.47	$	(1.25)	$	(1.93)

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

	September 30,
	2019	2018
Stock options to purchase common stock	2,840,849	2,566,855
Unvested restricted stock	1,330,088	1,063,681
Common stock warrants	4,646,393	—
Contingently issuable shares	20,000	142,679
	8,837,330	3,773,215