Annual report pursuant to Section 13 and 15(d)

Inventories (Details) - Schedule of inventory, current

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Inventories (Details) - Schedule of inventory, current - USD ($)
$ in Thousands
Jul. 31, 2015
Jul. 31, 2014
Schedule of inventory, current [Abstract]    
Raw materials $ 1,013 $ 1,092
Work in process 2,002 2,460
Finished products 4,381 5,138
$ 7,396 $ 8,690