Note 5 - Patents and Trademarks, Net

9 Months Ended

May. 31, 2015

Disclosure Text Block [Abstract]

Intangible Assets Disclosure [Text Block]

5.  PATENTS AND TRADEMARKS, NET

Patents and trademarks, net consisted of the following:

	May 31, 2015			August 31, 2014
Patents and trademarks	$	2,426,627		$	2,287,840
Less accumulated amortization		(1,155,888	)		(1,090,140	)
	$	1,270,739		$	1,197,700

Patent and trademark costs are amortized over seven years.  Costs incurred related to patents and trademarks are capitalized until filed and approved, at which time the amounts capitalized to date are amortized and any further costs, including maintenance costs, are expensed as incurred.  Amortization expense is estimated to approximate $90,000 in each of the next five fiscal years.