Net (Loss) Income Per Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Schedule of Antidilutive Securities

The following common stock equivalents were excluded from the calculation of diluted net (loss) income per share for the periods indicated because including them would have had an anti-dilutive effect or the exercise prices were greater than the average market price of the common shares.

	Three Months Ended March 31,
	2018	2017
Stock options	2,648,004	1,717,181
Unvested restricted stock	—	17,720
Common stock warrants	17,602,350	926,840
	20,250,354	2,661,741