Property, Plant and Equipment (Property, Plant and Equipment) (Details) - USD ($) $ in Thousands	May. 30, 2015	Aug. 30, 2014
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	$ 158,632	$ 151,566
Less accumulated depreciation	(123,986)	(126,431)
Total property, plant and equipment, net	34,646	25,135
Land [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	1,874	738
Buildings and building improvements [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	53,360	47,273
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	93,586	90,101
Software [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	6,130	4,356
Transportation [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	$ 3,682	$ 9,098