Note 12 - Research and Development (Detail) (USD $)	3 Months Ended	6 Months Ended
Feb. 28, 2013	Feb. 29, 2012	Feb. 28, 2013	Feb. 29, 2012	Feb. 28, 2013 Research and Development Contracts [Member]	Aug. 31, 2012 Research and Development Contracts [Member]
Research and Development Expense	$ 912,393	$ 974,777	$ 1,850,599	$ 1,789,082
Research and Development Arrangement, Contract to Perform for Others, Costs Incurred, Gross			137,364	228,576
Contract Receivable					85,418
Deferred Revenue						$ 96,861

The amount of costs incurred under a research and development arrangement accounted for as a contract to perform research and development for others.

+ References+ Details

The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

+ References+ Details