Note 15 - Income Taxes (Details) - Major Tax Jurisdictions In Which The Company And Affiliates Operate And The Earliest Tax Year Subject to Examination	3 Months Ended
	Nov. 30, 2013
Domestic Tax Authority [Member]
Income Tax Examination [Line Items]
Open Tax Years	2010 through 2013
State and Local Jurisdiction [Member]
Income Tax Examination [Line Items]
Open Tax Years	2010 through 2013
Foreign Tax Authority [Member] | France [Member]
Income Tax Examination [Line Items]
Open Tax Years	2010 through 2013
Foreign Tax Authority [Member] | United Kingdom [Member]
Income Tax Examination [Line Items]
Open Tax Years	2011 through 2013