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Earnings Per Share
 12 Months Ended
Oct. 31, 2011
Earnings Per Share [Abstract]  
Earnings Per Share
Note 16. Earnings Per Share
Basic earnings (loss) per common share (“EPS”) are generally calculated as income (loss) available to common shareholders divided by the weighted average number of common shares outstanding. Diluted EPS is generally calculated as income (loss) available to common shareholders divided by the weighted average number of common shares outstanding plus the dilutive effect of common share equivalents.
The calculation of basic and diluted EPS for the years ended October 31, 2011, 2010 and 2009 was as follows:
                         
    2011     2010     2009  
Numerator
                       
 
                       
Net loss
  $ (45,974 )   $ (56,326 )   $ (68,674 )
Adjustment for modification of redeemable preferred stock of subsidiary
    (8,987 )     —       —  
Preferred stock dividend
    (3,200 )     (3,201 )     (3,208 )
Net loss attributable to noncontrolling interest
    261       663       —  
 
                 
Net loss to common shareholders
  $ (57,900 )   $ (58,864 )   $ (71,882 )
 
                 
 
                       
Denominator
                       
 
                       
Weighted average basic common shares
    124,498,073       93,925,863       72,392,928  
Effect of dilutive securities (1)
    —       —       —  
Weighted average diluted common shares
    124,498,073       93,925,863       72,392,928  
 
                 
 
                       
Basic loss per share
    (0.47 )     (0.63 )     (0.99 )
 
                       
Diluted loss per share (1)
    (0.47 )     (0.63 )     (0.99 )
 
     
(1)  
Due to the net loss to common shareholders in each of the years presented above, diluted earnings per share was computed without consideration to potentially dilutive instruments as their inclusion would have been antidilutive. Potentially dilutive instruments include stock options, warrants and convertible preferred stock. At October 31, 2011, 2010 and 2009, there were options to purchase 3.3 million, 5.1 million and 5.7 million shares of common stock, respectively. On January 13, 2011 we issued 10.2 million warrants in connection with a registered direct offering. Each warrant is exercisable for 1 share of common stock. The warrants have an exercise price of $2.29 per share and are exercisable beginning on the date that is six months and one day after the initial closing date and will expire twenty one months after issuance.