Note 5 - Patents and Trademarks, Net (Details Textual) - Patents and Trademarks [Member]	6 Months Ended
	Feb. 29, 2016 USD ($)
Finite-Lived Intangible Assets, Amortization Expense, Year Two	$ 100,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	100,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	100,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	$ 100,000
Finite-Lived Intangible Asset, Useful Life	7 years
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	$ 100,000