Nature Of Operations And Summary Of Significant Accounting Policies (Useful Life Of Property And Equipment) (Details)	12 Months Ended
	Aug. 31, 2018
Buildings [Member]
Property, Plant and Equipment [Line Items]
Useful life	20 years
Machinery And Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life	5 years
Machinery And Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life	7 years
Computer Hardware And Software [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life	3 years
Computer Hardware And Software [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life	5 years
Furniture, Fixtures, And Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life	5 years
Furniture, Fixtures, And Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life	7 years