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14. Concentrations (Details) (USD $)	9 Months Ended
14. Concentrations (Details) (USD $)	May 31, 2013	May 31, 2012
Details
Concentration Risk, Customer	64	62
Concentration, volume of purchases	$ 12,622,276	$ 12,693,623

Description of risks that arise due to the volume of business transacted with a particular customer. At a minimum, the description informs financial statement users of the general nature of the risk, but excludes "Information about Major Customers" that may be disclosed elsewhere (for instance, segment disclosures).

+ References+ Details