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Investments
3 Months Ended
Feb. 28, 2012
Investments [Abstract]  
Investments
4. INVESTMENTS

Marketable securities, which are classified as available-for-sale, are summarized below as of February 28, 2012 and November 30, 2011 (in thousands):

 

     Purchased/
Amortized
Cost
     Gross
Unrealized
Gains
     Gross
Unrealized
Losses
    Aggregate
Fair Value
 

As of February 28, 2012:

          

Money market funds

   $ 16,687       $ —         $ —        $ 16,687   

Term deposits

     595         —           —          595   

Mortgage-backed securities

     193         49         (33     209   
  

 

 

    

 

 

    

 

 

   

 

 

 
   $ 17,475       $ 49       $ (33   $ 17,491   
  

 

 

    

 

 

    

 

 

   

 

 

 

As of November 30, 2011:

          

Money market funds

   $ 16,664       $ —         $ —        $ 16,664   

Term deposits

     560         —           —          560   

Mortgage-backed securities

     200         51         (26     225   
  

 

 

    

 

 

    

 

 

   

 

 

 
   $ 17,424       $ 51       $ (26   $ 17,449