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Inventories
6 Months Ended
Jan. 31, 2012
Inventories [Abstract]  
Inventories
5. Inventories

Inventories consist of the following (in thousands):

 

     January 31,     July 31,  
     2012     2011  

Raw materials and purchased components

   $ 1,394      $ 1,612   

Finished goods

     5,982        6,088   
  

 

 

   

 

 

 

Total

     7,376        7,700   

Obsolescence reserve

     (2,133     (2,184
  

 

 

   

 

 

 

Inventories

   $ 5,243      $ 5,516