Intangible Assets (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 30, 2011	Dec. 28, 2012
Finite-Lived Intangible Assets [Line Items]
Contingent Liability From Intangible Asset Purchase	$ 3,000,000
Weighted Average Amortization Period Purchased Assets	11 years
Goodwill, Impaired, Accumulated Impairment Loss		0
Purchased Technology And Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Purchase of technology and patents	$ 6,300,000