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Note 5 - Patents and Trademarks, Net (Tables) | 3 Months Ended
--- | ---
Nov. 30, 2012
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  | November 30, 2012 |  |  | August 31, 2012 |
Patents and trademarks |  | $ | 2,012,729 |  |  | $ | 1,945,785 |
Less accumulated amortization |  |  | (1,000,328 | ) |  |  | (984,604 | )
|  | $ | 1,012,401 |  |  | $ | 961,181 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16265-109275 + Details
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