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Property, Plant and Equipment and Assets Held for Sale (Property, Plant and Equipment) (Details) - USD ($)
$ in Thousands
Aug. 29, 2015
Aug. 30, 2014
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross $ 166,242 $ 151,566
Less accumulated depreciation (128,992) (126,431)
Total property, plant and equipment, net 37,250 25,135
Land [Member]    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross 1,874 738
Building and building improvements [Member]    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross 53,388 47,273
Machinery and equipment [Member]    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross 94,034 90,101
Software [Member]    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross 8,033 4,356
Transportation [Member]    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross $ 8,913 $ 9,098