Quarterly report pursuant to Section 13 or 15(d)

Inventories (Tables)

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Inventories (Tables)
 9 Months Ended
Apr. 30, 2016
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block] Inventories consist of the following:

    April 30,
2016		     July 31,
2015		  
Raw materials   $ 920     $ 1,013  
Work in process     1,811       2,002  
Finished products     4,247       4,381  
    $ 6,978     $ 7,396