Subsequent Event (Details) (Subsequent event, Fourth Amendment, USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 29, 2012
Period ending March 30, 2013
Subsequent Event
Trailing twelve months earnings before taxes financial covenant, subsequent to amendment	$ (0.10)
Period ending June 29, 2013
Subsequent Event
Trailing twelve months earnings before taxes financial covenant, subsequent to amendment	(0.30)
Period beginning September 28, 2013 through ending on September 30, 2016
Subsequent Event
Trailing twelve months earnings before taxes financial covenant, subsequent to amendment	$ 0.25