Earnings Per Share Available to Common Shareholders

9 Months Ended

Sep. 30, 2013

Earnings Per Share Available to Common Shareholders [Abstract]

Earnings Per Share Available to Common Shareholders

(12) Earnings Per Share Available to Common Shareholders

Basic and diluted net earnings or loss per share are computed by dividing earnings or loss available to common shareholders by the weighted average number of shares of common stock outstanding.  The computation of earnings or loss available to common shareholders is presented in our condensed consolidated statements of operations.  Diluted earnings per share includes the dilution that could occur based on outstanding restricted stock awards and the potential exercise of stock options, except for stock options with an exercise price of more than the average market price of our common stock, as such exercise would be anti-dilutive.

In the three months ended September 30, 2013 and 2012, options to purchase 3,412,352 and 4,992,671 shares of our common stock, respectively, had exercise prices greater than the average market price of our common stock during such respective periods, and, therefore, are not considered in the above calculations of diluted net loss per share.  In the nine months ended September 30, 2013 and 2012, options to purchase 4,902,352 and 4,632,431 shares of our common stock, respectively, had exercise prices greater than the average market price of our common stock during such respective periods, and, therefore, are not considered in the above calculations of diluted net loss per share.  

As a result of the losses in the three months ended September 30, 2013 and 2012, incremental shares from the assumed exercise of employee stock options totaling 6,522,188 and 7,418,750 shares, respectively, have been excluded from the calculation of diluted loss per share as their inclusion would have been anti-dilutive. As a result of the losses in the nine months ended September 30, 2013 and 2012, incremental shares from the assumed exercise of employee stock options totaling 5,032,188 and 7,778,990 shares, respectively, have been excluded from the calculation of diluted loss per share as their inclusion would have been anti-dilutive.