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Components of Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2013	Jul. 31, 2013
Inventories [Line Items]
Material and purchased components	$ 16,265	$ 15,379
Work-in-process	1,851	2,887
Finished testers, including inventory consigned to customers	11,122	10,873
Total inventories	$ 29,238	$ 29,139

Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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