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Note 9 - Exercised Stock Options (Details) - shares | 12 Months Ended
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Aug. 31, 2016 | Aug. 31, 2015
Exercise 1 [Member] |  |
Options Exercised (in shares) |  | 9.76
Exercise 2 [Member] |  |
Options Exercised (in shares) |  | 7.65
Exercise 3 [Member] |  |
Options Exercised (in shares) |  | 10.2
Options Exercised (in shares) | 0 | 38,333

X
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