Quarterly report pursuant to Section 13 or 15(d)

Equity-Based Compensation - Additional Information (Detail)

v3.21.2
Equity-Based Compensation - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Aug. 11, 2020
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Mar. 31, 2022
Mar. 31, 2021
Stock Compensation Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Equity based compensation expense   $ (22) $ 316 $ 315 $ 471    
Income tax benefit to equity based compensation   $ (6) 73 $ 69 $ 111    
Amended and Restated 2000 Incentive Plan [Member] | Stock Compensation Plan [Member] | Maximum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares authorized   422,000   422,000      
Amended and Restated 2000 Incentive Plan [Member] | Stock Compensation Prior Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Remaining available shares under equity based compensation plan   112,000   112,000      
Amended and Restated 2000 Incentive Plan [Member] | Employee Stock Option [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock option awards granted 0     0 0    
Number of stock options 33,000            
Amended and Restated 2000 Incentive Plan [Member] | Restricted Stock [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of unvested restricted stock 53,000            
Amended and Restated 2000 Incentive Plan [Member] | Restricted Stock [Member] | Performance Vested Restricted Stock [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock awarded   27,000   162,000 113,000    
Amended and Restated 2000 Incentive Plan [Member] | Restricted Stock [Member] | Performance Vested Restricted Stock [Member] | Officer [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock awarded   18,000         54,000
Share-based compensation vesting percentage   100.00%   100.00%      
Vesting period   3 years   3 years      
Amended and Restated 2000 Incentive Plan [Member] | Restricted Stock [Member] | Time Vested Restricted Stock [Member] | Officers and Key Employees [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock awarded   9,000         38,000
Share-based compensation vesting percentage   33.33%   33.33%      
Vesting period       3 years      
Amended and Restated 2000 Incentive Plan [Member] | Restricted Stock [Member] | Time Vested Restricted Stock [Member] | Director [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock awarded             21,000
Share-based compensation vesting percentage       100.00%      
Vesting period       1 year      
Amended and Restated 2000 Incentive Plan [Member] | Restricted Stock [Member] | Scenario Forecast [Member] | Performance Vested Restricted Stock [Member] | Officer [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock awarded           88,000  
Amended and Restated 2000 Incentive Plan [Member] | Restricted Stock [Member] | Scenario Forecast [Member] | Time Vested Restricted Stock [Member] | Officers and Key Employees [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock awarded           54,000  
Amended and Restated 2000 Incentive Plan [Member] | Restricted Stock [Member] | Scenario Forecast [Member] | Time Vested Restricted Stock [Member] | Director [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock awarded           20,000  
Employee Stock Purchase Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Equity based compensation expense   $ (1) 14 $ 15 $ 23    
Income tax benefit to equity based compensation   $ 0 $ 3 $ 4 $ 5    
Maximum discount on purchase price of common stock percentage on fair market value   15.00%          
Common stock may be purchased   200   200