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 ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Aug. 31, 2021
Aug. 31, 2020
Stock Options [Abstract]    
Share-based compensation expense $ 497 $ 517
2004 Incentive Plan and 2014 Equity Plan [Member]    
Number of Options [Roll Forward]    
Non-vested options outstanding, beginning of period (in shares) 179,999  
Granted (in shares) 115,000 130,000
Vested (in shares) (76,666)  
Non-vested options outstanding, end of period (in shares) 218,333 179,999
Weighted Average Grant Date Fair Value [Abstract]    
Non-vested options outstanding, beginning of period (in dollars per share) $ 4.31  
Granted (in dollars per share) 3.78 $ 4.19
Vested (in dollars per share) 4.27  
Non-vested options outstanding, end of period (in dollars per share) $ 4.04 $ 4.31
Stock Options [Abstract]    
Fair value of options vested $ 300 $ 400
Share-based compensation expense   $ 500
Unrecognized compensation expenses $ 500  
Weighted-average period for options expected to vest 2 years 3 months 18 days