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Basis of Presentation and Significant Accounting Policies (Tables)
3 Months Ended
Feb. 29, 2012
Basis of Presentation and Significant Accounting Policies [Abstract]  
Basic and diluted loss per share
                 
    Three Months Ended  
    February 29,
2012
    February 28,
2011
 

Numerator:

               

Net loss

  $ (45,802   $ (114,526
   

 

 

   

 

 

 

Denominator:

               

Basic and diluted average shares outstanding

    77,090       76,974  
   

 

 

   

 

 

 

Basic and diluted loss per share

  $ (.59   $ (1.49