Quarterly report pursuant to Section 13 or 15(d)

Inventories (Detail) - Schedule of Inventory, Current

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Inventories (Detail) - Schedule of Inventory, Current (USD $)
In Thousands, unless otherwise specified
Oct. 31, 2012
Jul. 31, 2012
Raw materials $ 1,215 $ 1,283
Work in process 2,849 2,821
Finished products 4,607 4,696
$ 8,671 $ 8,800