Net (Loss) Income Per Share

3 Months Ended

Mar. 31, 2018

Basic net (loss) income per share is calculated by dividing net (loss) income by the weighted-average shares outstanding during the period, without consideration for common stock equivalents. Diluted net (loss) income per share is calculated by adjusting weighted-average shares outstanding for the dilutive effect of common stock equivalents outstanding for the period, determined using the treasury-stock method. For purposes of the diluted net (loss) income per share calculation, stock options, unvested restricted stock, and common stock warrants are considered to be common stock equivalents.

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