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Note 8 - Net Income Per Common Share (Details)
3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
May 31, 2014
May 31, 2014
May 31, 2013
Equity Option [Member]
May 31, 2013
Equity Option [Member]
Note 8 - Net Income Per Common Share (Details) [Line Items]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 0 0 40,000 40,000