Note 15 - Income Taxes (Details) (USD $)	3 Months Ended
Nov. 30, 2014	Nov. 30, 2013	Aug. 31, 2014
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%	35.00%
Unrecognized Tax Benefits	$ 5,845,000us-gaap_UnrecognizedTaxBenefits		$ 5,501,000us-gaap_UnrecognizedTaxBenefits
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	1,300,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 200,000

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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-Glossary Unrecognized Tax Benefit

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Amount of interest expense accrued for an underpayment of income taxes.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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