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Note 14 - Fair Value Measurements
 6 Months Ended
Feb. 29, 2016
Notes to Financial Statements  
Fair Value, Measurement Inputs, Disclosure [Text Block]
14.
Fair Value Measurements
 
Assets and liabilities that are measured at fair value on a recurring basis primarily relate to marketable equity securities. These items are marked-to-market at each reporting period.
 
The following tables provide information by level for assets and liabilities that are measured at fair value on a recurring basis:
 
       
Fair Value Measurements
Using Inputs Considered as
   
Fair Value as of
February 29, 2016
   Level 1   Level 2   Level 3
Available for sale securities   $ 2,733,079     $ 2,733,079     $ —     $ —  
 
 
       
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     $ —     $ —  
 
There were no transfers between Level 1, Level 2, or Level 3 during the three and six months ended February 29, 2016 and February 28, 2015.