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SHAREHOLDERS' EQUITY (Tables)
 12 Months Ended
Aug. 31, 2021
Equity [Abstract]  
Schedule of Capital Units [Table Text Block]
   August 31, 
   2021   2020   2019 
Common stock outstanding, beginning of year   19,923,277    17,591,834    17,416,445 
Common stock issued during the year   218,244    2,331,443    175,389 
Common stock outstanding, end of year   20,141,521    19,923,277    17,591,834 
Schedule of dividends declared and paid
Schedule of dividends declared and paid                 
(in thousands, except dividend per share)                                Fiscal Year 2021
                
Record Date  Distribution Date   Number of Shares
Outstanding on
Record Date		    Dividend per
Share		    Total Amount 
10/26/2020  11/02/2020   19,924   $0.06   $1,195 
1/25/2021  2/01/2021   20,010   $0.06    1,201 
4/26/2021  5/03/2021   20,115   $0.06    1,207 
7/26/2021  8/02/2021   20,139   $0.06    1,208 
Total               $4,811 

  

(in thousands, except dividend per share)                                Fiscal Year 2020

 

Record Date  Distribution Date  Number of Shares
Outstanding on
Record Date		   Dividend per
Share		   Total Amount 
10/25/2019  11/01/2019   17,606   $0.06   $1,056 
1/27/2020  2/03/2020   17,646   $0.06    1,059 
4/24/2020  5/01/2020   17,769   $0.06    1,066 
7/27/2020  8/03/2020   17,820   $0.06    1,069 
Total               $4,250 
Schedule of stock option activity
Schedule of stock option activity            
(in thousands, except per share and weighted-average amounts)
Transactions During Fiscal Year 2021		  Number of
Options		   Weighted-Average
Exercise Price
Per Share		   Weighted-Average
Remaining
Contractual Life		 
             
Outstanding, August 31, 2020   1,224   $17.76    6.79 
Granted   226    57.60      
Exercised   (204)   12.53      
Canceled/Forfeited   (62)   29.83      
Outstanding, August 31, 2021   1,184   $25.63    6.47 
Vested and Exercisable, August 31, 2021   619   $13.36    4.95 
Vested and Expected to Vest, August 31, 2021   1,173   $25.69    6.47 

 

(in thousands, except per share and weighted-average amounts)
Transactions During Fiscal Year 2020		  Number of
Options		   Weighted-Average
Exercise Price
Per Share		   Weighted-Average
Remaining
Contractual Life		 
             
Outstanding, August 31, 2019   1,163   $12.63    7.13 
Granted   223    39.23      
Exercised   (121)   9.29      
Canceled/Forfeited   (41)   14.19      
Outstanding, August 31, 2020   1,224   $17.76    6.79 
Vested and Exercisable, August 31, 2020   596   $10.69    5.59 
Vested and Expected to Vest, August 31, 2020   1,194   $17.75    6.77 

 

(in thousands, except per share and weighted-average amounts)
Transactions During Fiscal Year 2019		  Number of
Options		   Weighted-Average
Exercise Price
Per Share		   Weighted-Average
Remaining
Contractual Life		 
             
Outstanding, August 31, 2018   1,135   $9.44    7.31 
Granted   264    22.78      
Exercised   (167)   7.15      
Canceled/Forfeited   (69)   12.17      
Outstanding, August 31, 2019   1,163   $12.63    7.13 
Vested and Exercisable, August 31, 2019   515   $8.57    6.09 
Vested and Expected to Vest, August 31, 2019   1,102   $12.39    7.07 
Intrinsic value of options outstanding and options exercisable
Intrinsic value of options outstanding and options exercisable              
(in thousands)  Intrinsic Value
of Options
Outstanding		   Intrinsic
Value of
Options
Exercisable		   Intrinsic
Value of
Options
Exercised		 
Fiscal Year 2019  $27,313   $14,195   $3,224 
Fiscal Year 2020  $51,273   $29,151   $4,086 
Fiscal Year 2021  $25,705   $19,373   $11,554 
Schedule of fair value of options
Schedule of fair value of options          
(in thousands, except prices)  Fiscal Year 2021   Fiscal Year 2020 
Estimated fair value of awards granted  $5,092   $2,997 
Unvested Forfeiture Rate   0%    0% 
Weighted average grant price  $57.60   $39.23 
Weighted average market price  $57.60   $39.23 
Weighted average volatility   40.49%    33.56% 
Weighted average risk-free rate   0.64%    1.39% 
Weighted average dividend yield   0.42%    0.65% 
Weighted average expected life   6.63 years    6.67 years 
Schedule of options by exercise price range
                             
Exercise Price   Awards Outstanding   Awards Exercisable 
Low   High   Quantity   Weighted
Average
Remaining
Contractual
Life		   Weighted
Average
Exercise
Price		   Quantity   Weighted
Average
Remaining
Contractual
Life		   Weighted
Average
Exercise
Price		 
$6.85   $8.28    144    3.00 years   $6.85    144    3.00 years   $6.85 
$8.29   $10.03    183    4.52 years   $9.72    183    4.52 years   $9.72 
$10.04   $12.20    221    5.48 years   $10.05    162    5.48 years   $10.05 
$12.21   $28.16    184    6.66 years   $20.37    66    5.88 years   $20.25 
$28.17   $57.04    230    8.40 years   $37.22    51    8.08 years   $34.19 
$57.05   $66.14    222    9.17 years   $58.77    13    8.88 years   $61.84 
           1,184    6.47 years   $25.63    619    4.95 years   $13.36