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2. FAIR VALUE MEASUREMENTS (Tables)
9 Months Ended
May 31, 2017
Fair Value Measurements Tables  
Schedule of fair value of assets and liabilities measured on a recurring basis
              Fair Value Measurement Using:      
         Cost / Other    Quoted Prices in Active Markets for Identical Assets    Significant Other Observable Inputs    Significant Unobservable Inputs    Accumulated Unrealized Gains and 
    Fair Value    Value    (Level 1)    (Level 2)    (Level 3)    (Losses) 
Certificates of deposit  $11,432,214   $11,443,068   $—     $11,432,214   $—     $(10,854)
U.S. Treasuries   8,800,721    8,814,820    —      8,800,721    —      (14,099)
 Subtotal  $20,232,935   $20,257,888   $—     $20,232,935   $—     $(24,953)
Long-term investments   1,430,177    1,431,712    —      1,430,177         (1,535)
 Total  $21,663,112   $21,689,600   $ —     $21,663,112   $ —     $(26,488)