Note 15 - Income Taxes (Details) - Reconciliation of Unrecognized Tax Benefits $ in Thousands	9 Months Ended
May. 31, 2015 USD ($)
Reconciliation of Unrecognized Tax Benefits [Abstract]
Unrecognized income tax benefits	$ 5,501
Additions based on tax positions related to the current year	721
Additions for tax positions of prior years	968
Statute of limitations lapse	(809)
Unrecognized income tax benefits	$ 6,381

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

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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.

+ References

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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.

+ References

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