Other Income, Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012	Dec. 29, 2012
Other Income and Expenses [Abstract]
Interest income	$ 91	$ 68	$ 196	$ 117
Interest expense	(13)	(20)	(27)	(62)
Other income, net	$ 78	$ 48	$ 169	$ 55	$ 169