Quarterly report pursuant to Section 13 or 15(d)

SHAREHOLDERS' EQUITY, Stock Option Activity (Details)

v3.22.1
SHAREHOLDERS' EQUITY, Stock Option Activity (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jan. 12, 2022
item
$ / shares
shares
Jan. 13, 2021
item
$ / shares
shares
Feb. 28, 2022
USD ($)
$ / shares
shares
Feb. 28, 2021
USD ($)
shares
Feb. 28, 2022
USD ($)
$ / shares
shares
Feb. 28, 2021
USD ($)
shares
Aug. 31, 2021
USD ($)
$ / shares
shares
Stock Options [Abstract]              
Share-based compensation expense | $         $ 371 $ 313  
2014 Equity Plan [Member]              
Shareholders' Equity [Abstract]              
Shares reserved for issuance (in shares)     1,600,000   1,600,000    
Shares available for grant (in shares)     889,576   889,576   974,965
Number of Options [Roll Forward]              
Exercised (in shares)     (6,000)   (6,000)    
Weighted Average Exercise Price [Roll Forward]              
Exercised (in dollars per share) | $ / shares     $ 5.66   $ 5.66    
2014 Equity Plan [Member] | Non-Employee Board Members [Member]              
Number of Options [Roll Forward]              
Granted (in shares) 2,000 2,000          
Stock Options [Abstract]              
Number of board members | item 6 6          
Stock price (in dollars per share) | $ / shares $ 13.23 $ 11.33          
Share-based compensation expense | $     $ 200 $ 100      
2004 Incentive Plan and 2014 Equity Plan [Member]              
Number of Options [Roll Forward]              
Outstanding, beginning of period (in shares)         714,500    
Granted (in shares)         105,000    
Exercised (in shares)         (58,167)    
Net settlement exercised (in shares)         (3,333)    
Outstanding, end of period (in shares)     758,000   758,000   714,500
Options exercisable (in shares)     525,002   525,002    
Weighted Average Exercise Price [Roll Forward]              
Outstanding, beginning of period (in dollars per share) | $ / shares         $ 7.80    
Granted (in dollars per share) | $ / shares         13.37    
Exercised (in dollars per share) | $ / shares         7.67    
Net settlement exercised (in dollars per share) | $ / shares         10.45    
Outstanding, end of period (in dollars per share) | $ / shares     $ 8.58   8.58   $ 7.80
Options exercisable (in dollars per share) | $ / shares     $ 7.41   $ 7.41    
Stock Options [Abstract]              
Weighted average remaining contractual term     5 years 1 month 6 days       6 years 1 month 6 days
Weighted average remaining contractual term, options exercisable     4 years 10 months 24 days        
Approximate aggregate intrinsic value, outstanding | $     $ 2,639   $ 2,639   $ 5,107
Approximate aggregate intrinsic value, options exercisable | $     2,330   2,330    
Share-based compensation expense | $     $ 300 $ 200 $ 400 $ 300  
Shares issued (in shares)     17,422 3,159 23,889 15,277  
Options cancelled (in shares)     21,578 3,341 28,278 9,223