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Inventories (Tables)
12 Months Ended
Aug. 31, 2012
Inventories [Abstract]  
Schedule of Inventories
                 
    August 31,
2012
    August 31,
2011
 

Product held at contract manufacturers

  $ 4,142     $ 1,727  

Raw materials and components

    4,093       2,174  

Work-in-process

    347       318  

Finished goods

    21,215       13,385  
   

 

 

   

 

 

 

Total

  $   29,797     $   17,604