Legal Proceedings Legal Proceedings (Details Textual) (USD $)	0 Months Ended
	Jul. 02, 2013	Dec. 29, 2013
Loss Contingencies [Line Items]
Final Amended Judgment amount	$ 115,100,000
Final Amended Judgment royalty rate	8.00%
Long-term legal contingencies		132,933,000
Syntrix [Member]
Loss Contingencies [Line Items]
Long-term legal contingencies		132,900,000
Ongoing royalty amount deposited with the Court		12,000,000
Operating Expense [Member] | Syntrix [Member]
Loss Contingencies [Line Items]
Long-term legal contingencies		$ 114,600,000