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Note 8 - Stockholders' Equity (Details) (USD $)	3 Months Ended
	Nov. 30, 2013	Nov. 30, 2012
Note 8 - Stockholders' Equity (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)	56,373	96,294
2007 Plan [Member]
Note 8 - Stockholders' Equity (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)	56,373	118,294
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share)	$ 14.83	$ 10.25

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- Definition

Gross number of share options (or share units) granted during the period.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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