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Note 11 - Geographic And Segment Information (Detail) - Total assets by geographic distribution: (USD $)
Feb. 28, 2013
Aug. 31, 2012
Total assets $ 45,439,407 $ 41,877,627
Brazil [Member]
   
Total assets 1,456,793 1,744,693
North America [Member]
   
Total assets $ 43,982,614 $ 40,132,934