Note 15 - Income Taxes (Details) - Reconciliation of Unrecognized Tax Benefits (USD $) In Thousands, unless otherwise specified	12 Months Ended
Aug. 31, 2013	Aug. 31, 2012	Aug. 31, 2011
Reconciliation of Unrecognized Tax Benefits [Abstract]
Unrecognized income tax benefits	$ 5,464	$ 7,204	$ 7,346
Additions based on tax positions related to the current year	1,372	691	1,258
Additions for tax positions of prior years	986	470	1,493
Statute of limitations lapse	(1,103)	(613)	(964)
Reductions from settlements with taxing authorities	(1,284)	(2,288)	(1,929)
Unrecognized income tax benefits	$ 5,435	$ 5,464	$ 7,204

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

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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