Annual report pursuant to Section 13 and 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 ($)
 12 Months Ended
Aug. 31, 2018
Aug. 31, 2017
Aug. 31, 2016
Weighted Average Grant Date Fair Value [Abstract]      
Forfeited (in dollars per share) $ 4.41 $ 3.67 $ 2.89
Stock Options, Additional Disclosure [Abstract]      
Fair value of options vested $ 210,700 $ 90,500 $ 216,900
Weighted average grant date fair value of options granted (in dollars per share) $ 4.41 $ 3.67 $ 2.89
Share-based compensation expense $ 324,840 $ 233,245 $ 219,886
Unrecognized expenses $ 294,800    
Weighted-average period for options expected to vest 3 years    
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) 82,500 142,500  
Vested (in shares) (74,167)    
Forfeited (in shares) 0    
Non-vested options outstanding, end of period (in shares) 155,833 147,500  
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 $ 3.64  
Stock Options, Additional Disclosure [Abstract]      
Weighted average grant date fair value of options granted (in dollars per share) $ 0