Property, Plant and Equipment (Property, Plant and Equipment) (Details) - USD ($) $ in Thousands	May 28, 2016	Aug. 29, 2015
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	$ 185,764	$ 166,242
Less accumulated depreciation	(132,965)	(128,992)
Total property, plant and equipment, net	52,799	37,250
Land [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	3,864	1,874
Buildings and building improvements [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	61,860	53,388
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	97,761	94,034
Software [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	13,303	8,033
Transportation [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	$ 8,976	$ 8,913