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Summary of Significant Accounting Policies (Details1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Activity of Product warranty liability included in other accrued liabilities
Balance at beginning of year	$ 70	$ 25	$ 169
Provisions for warranty costs	1,064	586	325
Charge-offs	(848)	(541)	(469)
Balance at end of year	$ 286	$ 70	$ 25

- 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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