Property, Plant and Equipment and Assets Held for Sale (Property, Plant and Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Aug. 30, 2014	Aug. 31, 2013
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	$ 151,566	$ 151,322
Less accumulated depreciation	(126,431)	(131,056)
Total property, plant and equipment, net	25,135	20,266
Land [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	738	757
Building and building improvements [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	47,273	50,297
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	90,101	88,280
Software [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	4,356	2,944
Transportation [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	$ 9,098	$ 9,044