Summary of Significant Accounting Policies Revenue Recognition (Details) (USD $) In Thousands, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Accounting Policies [Abstract]
Revenue Recognition, Sales Returns Reserve Liability	$ (1,169)	$ (1,570)	$ (1,129)	$ (1,082)