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Short-term Investments (Tables)
9 Months Ended
Aug. 03, 2013
Investments Debt And Equity Securities [Abstract]  
Summary of Short-term Investments

The following is a summary of short-term investments (available for sale):

 

     August 3, 2013  
     Amortized
Cost
     Gross
Unrealized
Gains
     Gross
Unrealized
Losses
     Estimated
Fair Value
 

Equity securities in a public company

   $ 167,930       $ 294,143       $ —         $ 462,073   
  

 

 

    

 

 

    

 

 

    

 

 

 

 

     November 3, 2012  
     Amortized
Cost
     Gross
Unrealized
Gains
     Gross
Unrealized
Losses
     Estimated
Fair Value
 

Equity securities in a public company

   $ 167,930       $ 153,016       $ —         $ 320,946