Earnings per Share

6 Months Ended

Jun. 30, 2016

8.	Earnings per Share

Basic per share data is computed by dividing net income or loss applicable to common stockholders by the weighted average number of common shares outstanding during the period. Diluted per share data is computed by dividing net income or loss applicable to common stockholders by the weighted average number of common shares outstanding during the period increased to include, if dilutive, the number of additional common shares that would have been outstanding as calculated using the treasury stock method. Potential common shares were related entirely to outstanding but unexercised options and warrants for all periods presented.

We have excluded all potentially dilutive securities, including unvested performance-based restricted stock, from the calculation of diluted loss per share attributable to common stockholders for the three and six month periods ended June 30, 2016 and six month period ended June 30, 2015, as their inclusion would be antidilutive. We have included 0.6 million dilutive securities for the purposes of calculating earnings per share for the three months ended June 30, 2015. Potentially dilutive common shares excluded from the calculations of diluted loss per share were 4.4 million for the six month periods ended June 30, 2016 and 3.7 million for the six month period ended June 30, 2015, respectively.

The following securities that could potentially decrease net loss per share in the future are not included in the determination of diluted loss per share as they are anti-dilutive:

	For the three months ended June 30,				For the six months ended June 30,
	2016		2015		2016		2015
Outstanding stock options		803,507		528,429		803,507		570,214
Outstanding warrants		3,571,765		2,542,255		3,571,765		3,058,868
Restricted stock		17,960		41,677		17,960		41,677