Property, Plant and Equipment, Net (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Land and improvements	$ 7,231	$ 6,950
Buildings and improvement	50,627	50,293
Machinery and equipment	149,040	137,432
Property, plant and equipment, gross	206,898	194,675
Accumulated depreciation	(132,413)	(125,192)
Property, plant and equipment, net	74,485	69,483
Depreciation	$ 9,866	$ 9,070	$ 9,417