Annual report pursuant to Section 13 and 15(d)

Stock Compensation Plans - Additional Information (Detail)

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Stock Compensation Plans - Additional Information (Detail) - USD ($)
shares in Thousands, $ in Thousands
12 Months Ended
Aug. 11, 2020
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock based compensation expense   $ 1,188 $ 785 $ 780
Income tax benefit to stock based compensation   264 173 173
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized stock-based compensation expense   $ 2,007    
Weighted average period for recognize expense   1 year 3 months 25 days    
Amended and Restated 2000 Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Awards available for future grants   424    
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    
Amended and Restated 2000 Incentive Plan [Member] | Employee Stock Option        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock option awards granted 0      
Amended and Restated 2000 Incentive Plan [Member] | Maximum [Member] | Stock Compensation Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized   722    
Employee Stock Purchase Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock based compensation expense   $ 91 $ 21 $ 29
Issued from common stock   50 17 0
Income tax benefit to stock based compensation   $ 20 $ 5 $ 7
Maximum discount on purchase price of common stock percentage on fair market value   15.00%    
Issue of treasury stock to the ESPP for the offering periods   0 29 18
Common stock may be purchased   400