Quarterly report pursuant to Section 13 or 15(d)

SHAREHOLDERS' EQUITY, Non-Vested Options (Details)

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SHAREHOLDERS' EQUITY, Non-Vested Options (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Feb. 28, 2021
Feb. 29, 2020
Feb. 28, 2021
Feb. 29, 2020
Stock Options [Abstract]        
Share-based compensation expense     $ 313 $ 353
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  
Vested (in shares)     (76,666)  
Forfeited (in shares) [1]     0  
Non-vested options outstanding, end of period (in shares) 218,333   218,333  
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  
Vested (in dollars per share)     4.27  
Forfeited (in dollars per share) [1]     0  
Non-vested options outstanding, end of period (in dollars per share) $ 4.04   $ 4.04  
Stock Options [Abstract]        
Share-based compensation expense $ 200 $ 200 $ 300 $ 300
Unrecognized compensation expenses $ 700   $ 700  
Weighted-average period for options expected to vest     3 years  
[1] All non-vested options are expected to vest.