Summary of Significant Accounting Policies (Details 3) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 29, 2012		Oct. 01, 2011
Reconciliation of the changes in the Company's warranty liability
Balance, beginning of period	$ 556	[1]	$ 607
Accruals for product warranties	123		125
Cost of warranty claims and adjustments	(151)		(100)
Balance, end of period	$ 528		$ 632

[1] Derived from the audited consolidated financial statements included in the annual report filed on Form 10-K with the SEC for the year ended December 31, 2011.