Other Income (Expense), Net (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Other Income and Expenses [Abstract]
Interest income	$ 375	$ 310	$ 155
Interest expense	(52)	(92)	(188)
Other income (expense), net	$ 323	$ 218	$ (33)