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Inventories
12 Months Ended
Jul. 31, 2013
Inventories [Abstract]  
Inventories
4.
Inventories
 
Inventories consist of the following as of July 31, 2013 and 2012 (in thousands):
  
 
 
2013
 
2012
 
 
 
 
 
 
 
 
 
Raw materials and purchased components
 
$
791
 
$
1,151
 
Work in process
 
 
749
 
 
894
 
Finished goods
 
 
4,029
 
 
5,355
 
Total
 
 
5,569
 
 
7,400
 
Inventory obsolescence reserve
 
 
(543)
 
 
(2,139)
 
Total inventories
 
$
5,026
 
$
5,261