Other Income, Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Other Income and Expenses [Abstract]
Interest income	$ 88	$ 91	$ 200	$ 196
Interest expense	(10)	(13)	(20)	(27)
Other income, net	$ 78	$ 78	$ 180	$ 169