Quarterly report pursuant to Section 13 or 15(d)

SHAREHOLDERS' EQUITY, Combined Activity and Value of Non-vested Options (Details)

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SHAREHOLDERS' EQUITY, Combined Activity and Value of Non-vested Options (Details) - USD ($)
 3 Months Ended 9 Months Ended
May 31, 2018
May 31, 2017
May 31, 2018
May 31, 2017
Stock Options, Additional Disclosure [Abstract]        
Share-based compensation expense $ 83,600 $ 63,500 $ 241,209 $ 168,034
2004 Incentive Plan and 2014 Equity Plan [Member]        
Number of Options [Roll Forward]        
Non-vested options outstanding, beginning of period (in shares)     147,500  
Granted (in shares) [1]     82,500  
Vested (in shares)     (74,168)  
Forfeited (in shares)     0  
Non-vested options outstanding, end of period (in shares) 155,832   155,832  
Weighted Average Grant Date Fair Value [Abstract]        
Non-vested options outstanding, beginning of period (in dollars per share)     $ 3.64  
Granted (in dollars per share)     4.41  
Vested (in dollars per share)     2.84  
Forfeited (in dollars per share)     0  
Non-vested options outstanding, end of period (in dollars per share) $ 3.76   $ 3.76  
Stock Options, Additional Disclosure [Abstract]        
Share-based compensation expense $ 83,600 $ 63,500 $ 241,209 $ 168,034
Unrecognized expenses $ 378,400   $ 378,400  
Weighted-average period for options expected to vest     2 years  
[1] Includes 50,000 shares granted to Mr. Harding on September 27, 2017 and 32,500 total shares granted to the board of directors on January 17, 2018.