Earnings (Loss) Per Share

6 Months Ended

Jun. 30, 2012

Earnings Per Share [Abstract]

Earnings (Loss) Per Share

Earnings (Loss) Per Share

For purposes of this calculation, outstanding stock options, stock warrants, and unvested restricted stock units are considered common stock equivalents using the treasury stock method, and are the only such equivalents outstanding.  For the three and six months ended June 30, 2012, options to purchase approximately 2.2 million shares of common stock, warrants to purchase 358,334 shares of common stock and approximately 10,000 unvested restricted stock units were excluded from the calculation as their impact would be anti-dilutive.