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, 2019
May 31, 2018
May 31, 2019
May 31, 2018
Stock Options, Additional Disclosure [Abstract]        
Share-based compensation expense $ 96,100 $ 83,600 $ 257,813 $ 241,209
2004 Incentive Plan and 2014 Equity Plan [Member]        
Number of Options [Roll Forward]        
Non-vested options outstanding, beginning of period (in shares)     155,833  
Granted (in shares) [1]     82,500  
Vested (in shares)     (85,834)  
Forfeited (in shares)     0  
Non-vested options outstanding, end of period (in shares) 152,499   152,499  
Weighted Average Grant Date Fair Value [Abstract]        
Non-vested options outstanding, beginning of period (in dollars per share)     $ 3.76  
Granted (in dollars per share)     4.60  
Vested (in dollars per share)     3.46  
Forfeited (in dollars per share)     0  
Non-vested options outstanding, end of period (in dollars per share) $ 4.03   $ 4.03  
Stock Options, Additional Disclosure [Abstract]        
Share-based compensation expense $ 96,100 $ 83,600 $ 257,800 $ 241,200
Unrecognized compensation expenses $ 362,400   $ 362,400  
Weighted-average period for options expected to vest     1 year  
[1] Includes 50,000 shares granted to Mr. Harding on September 26, 2018 and 32,500 total shares granted to non-employee directors on January 16, 2019.