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Note 14 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value Recurring Basis (Details) - USD ($)
Nov. 30, 2016
Aug. 31, 2015
Available for sale securities $ 1,745,968 $ 2,243,864
Fair Value, Inputs, Level 1 [Member]    
Available for sale securities 1,745,968 2,243,864
Fair Value, Inputs, Level 2 [Member]    
Available for sale securities
Fair Value, Inputs, Level 3 [Member]    
Available for sale securities