Note 5 - Patents and Trademarks, Net (Details Textual) - USD ($)	12 Months Ended
	Aug. 31, 2019	Aug. 31, 2018
Amortization, Total	$ 261,724	$ 252,312
Patents and Trademarks [Member]
Finite-Lived Intangible Asset, Useful Life	7 years
Amortization, Total	$ 261,724	$ 252,312
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	200,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two	200,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	200,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	200,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	$ 200,000