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Note 12 - Geographic and Segment Information (Details) - Total Assets by Geographic Distribution - USD ($)
May. 31, 2015
Aug. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total assets $ 51,871,411 $ 54,057,775
BRAZIL    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total assets 1,046,801 1,429,054
CHINA    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total assets 1,395,952  
INDIA    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total assets 389,659 363,894
UNITED STATES    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total assets $ 49,038,999 $ 52,264,827