Goodwill and Intangible Assets Goodwill and Indefinite-Lived Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012
Goodwill [Roll Forward]
Beginning balance	$ 2,850	$ 2,850
Comfortaire purchase	6,113	0
Ending balance	8,963	2,850
Indefinite-Lived Intangible Assets [Roll Forward]
Beginning balance	0	0
Indefinite-lived Intangible Assets Acquired	1,396	0
Ending balance	$ 1,396	$ 0