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Note 12 - Research and Development (Details) (USD $)	3 Months Ended		9 Months Ended
	May 31, 2013	May 31, 2012	May 31, 2013	May 31, 2012	May 31, 2013 Research and Development Contracts [Member]	Aug. 31, 2012 Research and Development Contracts [Member]
Note 12 - Research and Development (Details) [Line Items]
Research and Development Expense	$ 1,002,651	$ 1,067,454	$ 2,853,250	$ 2,856,536
Research and Development Arrangement, Contract to Perform for Others, Costs Incurred, Gross			206,046	297,258
Contract Receivable					143,395
Deferred Revenue						$ 96,861

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Amount billed to customers under long-term contracts or programs but not paid. Excludes amounts due that have been withheld because of retainage provisions in a contract.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 910

-SubTopic 310

-Section 50

-Paragraph 3

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-Name Accounting Standards Codification

-Topic 210

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-Section S99

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 13

-Section A



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-Name Accounting Standards Codification

-Topic 605

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

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 730

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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.

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