Property, Plant and Equipment and Asset Held for Sale - Schedule of Property, Plant and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 111,120	$ 104,769
Less accumulated depreciation	(66,997)	(63,549)
Property, plant and equipment, net	44,123	41,220
Land [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	5,641	3,802
Building and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	36,686	36,572
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	45,058	44,337
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	6,453	6,006
Software [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	13,730	12,965
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 3,552	$ 1,087