Other Income, Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Other Income and Expenses [Abstract]
Interest income	$ 88	$ 89	$ 284	$ 206
Interest expense	(14)	(16)	(41)	(78)
Other income, net	$ 74	$ 73	$ 243	$ 128