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Note 6 - Product Warranties (Detail) - Warranty reserve activity (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 28, 2012	Jul. 30, 2011
Balance at beginning of year	$ 21	$ 21
Net provision for anticipated warranty claims	35	129
Costs incurred related to warranty claims	(50)	(129)
Balance at end of year	$ 6	$ 21

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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