Quarterly report pursuant to Section 13 or 15(d)

Inventories (Tables)

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Inventories (Tables)
 6 Months Ended
Jan. 31, 2013
Schedule of Inventory, Current [Table Text Block] Inventories consist of the following:
    January 31,
2013 		    July 31,
2012 		 
Raw materials   $ 1,150     $ 1,283  
Work in process     2,846       2,821  
Finished products     5,304       4,696  
    $ 9,300     $ 8,800