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Summary of Significant Accounting Policies and Nature of Operations (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 29, 2012	Dec. 31, 2011
Aggregate warranty liabilities
Warranty liabilities, beginning of period		$ 384	$ 154
Adjustments to preexisting warranty liabilities	232	(232)
Additions to warranty liabilities		248	352
Reductions to warranty liabilities		(118)	(122)
Warranty liabilities, end of period		$ 282	$ 384

- 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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