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Significant Accounting Policies (Details 5) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012
Changes in warranty accrual
Beginning Balance	$ 47	$ 71
Standard accrual based on units sold	40	43
Actual costs incurred	(16)	(16)
Periodic accrual adjustments	(37)	(51)
Ending Balance	$ 34	$ 47

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. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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