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Note 12 - Common Stock and Earnings Per Share (Details) (USD $)	0 Months Ended	1 Months Ended	12 Months Ended						1 Months Ended
	May 05, 2014	Jun. 30, 2014	Aug. 31, 2014 Equity Option [Member]	Aug. 31, 2013 Equity Option [Member]	Aug. 31, 2012 Equity Option [Member]	Aug. 31, 2014 Performance-Based Stock Options [Member]	Aug. 31, 2013 Performance-Based Stock Options [Member]	Aug. 31, 2012 Performance-Based Stock Options [Member]	Jun. 30, 2014 Per Annum [Member]
Note 12 - Common Stock and Earnings Per Share (Details) [Line Items]
Increase in Dividend Rate	11.00%
Common Stock, Dividends, Per Share, Cash Paid (in Dollars per share)		$ 0.39							$ 1.56
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			0	6,408	383,058	380,653	1,202,685	1,710,017

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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