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Note 14 - Fair Value Measurements (Tables)
3 Months Ended
Nov. 30, 2015
Notes Tables  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table Text Block]
        Fair Value Measurements
Using Inputs Considered as
    Fair value as of
November 30, 2015
  Level 1   Level 2   Level 3
Available for sale securities   $ 528,867     $ 528,867     $ -     $ -  
        Fair Value Measurements
Using Inputs Considered as
    Fair value as of
August 31, 2015
  Level 1   Level 2   Level 3
Available for sale securities   $ 2,027,441     $ 2,027,441     $ -     $ -