Property, Plant and Equipment, Net (Details) (USD $) In Thousands	Oct. 01, 2011	Jan. 01, 2011
Property, plant and equipment, net
Property, plant and equipment, gross	$ 81,912	$ 81,455
Less accumulated depreciation	(42,358)	(43,378)
Total Property, plant and equipment, net	39,554	38,077
Land, building and improvements
Property, plant and equipment, net
Property, plant and equipment, gross	20,113	18,498
Equipment and capitalized software
Property, plant and equipment, net
Property, plant and equipment, gross	38,537	40,887
Furniture and leasehold improvements
Property, plant and equipment, net
Property, plant and equipment, gross	$ 23,262	$ 22,070