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Stock-Based Compensation (Narrative) (Details) - USD ($)
3 Months Ended 6 Months Ended
Jan. 14, 2022
Feb. 28, 2022
Nov. 30, 2021
Feb. 28, 2021
Nov. 30, 2020
Feb. 28, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Common stock issued from treasury stock           245,157
Shares withheld for tax           86,125
Shares withheld for tax, fair value           $ 3,500,000
Vesting period of awards           1 year
Employee Stock Purchase Plan [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Price of common stock as a percent of the average fair market value           85.00%
Shares issued to employee stock purchase plan participants   8,667       18,046
Common Stock [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Cost of common stock issued from treasury    
Restricted Stock Awards [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Whole-share grant per eligible director           $ 110,000
Time-Based Award [Member] | Fiscal 2022 Long Term Incentive Plan Award [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Percent of performance award to be granted           25.00%
Shares may be awarded           24,649
Performance-Based Award [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares issued under terms of the award           73,929
Performance-Based Award [Member] | Fiscal 2022 Long Term Incentive Plan Award [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Percent of performance-based objectives   100.00%       100.00%
Performance-Based Award [Member] | Common Stock [Member] | 2022 Omnibus Plan [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Authorized additional shares of common stock for issuance 1,000,000          
Tranche One and Two [Member] | Performance-Based Award [Member] | Fiscal 2022 Long Term Incentive Plan Award [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares may be awarded           147,840
Tranche One and Two [Member] | Performance-Based Award [Member] | Minimum [Member] | Fiscal 2022 Long Term Incentive Plan Award [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Percent of performance award to be granted           50.00%
Tranche One and Two [Member] | Performance-Based Award [Member] | Maximum [Member] | Fiscal 2022 Long Term Incentive Plan Award [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Percent of performance award to be granted           200.00%