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Note 5 - Patents and Trademarks, Net (Details) - May. 31, 2015 - Patents and Trademarks [Member] - USD ($)
Total
Note 5 - Patents and Trademarks, Net (Details) [Line Items]  
Finite-Lived Intangible Asset, Useful Life 7 years
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months $ 90,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two 90,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three 90,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four 90,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five $ 90,000