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Note 5 - Patents and Trademarks, Net (Details) - Patents and Trademarks, Net (USD $) | May 31, 2013 | Aug. 31, 2012
--- | --- | ---
Patents and Trademarks, Net [Abstract] |  |
Patents and trademarks | $ 2,097,872 | $ 1,945,785
Less accumulated amortization | (1,036,147) | (984,604)
| $ 1,061,725 | $ 961,181

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