v3.25.2
The Incentive Stock Plans - Summary of Activity from Incentive Stock Plans (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 9 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Sep. 30, 2024
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Options granted, Options Outstanding 0 0  
Stock Options [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Shares Available for Grant, Beginning Balance 1,295,064    
Shares authorized, Shares Available for Grant 495,000    
Restricted stock awards granted, Shares Available for Grant (574,132)    
Restricted stock awards forfeited, Shares Available for Grant 45,509    
Additional shares of stock issued, Shares Available for Grant (5,049)    
Shares Available for Grant, Ending Balance 1,256,392   1,295,064
Options Outstanding, Beginning Balance 30,750    
Options exercised, Options Outstanding (5,750)    
Options Outstanding, Ending Balance 25,000   30,750
Exercisable as of June 30, 2025, Options Outstanding 21,666    
Aggregate Intrinsic Value $ 82   $ 296
Exercisable as of June 30, 2025, Aggregate Intrinsic Value $ 82    
Weighted Average Exercise Price, Beginning Balance $ 26.97    
Options exercised, Weighted Average Exercise Price 19.02    
Weighted Average Exercise Price, Ending Balance 28.8   $ 26.97
Exercisable as of June 30, 2025, Weighted Average Exercise Price $ 29.4    
Weighted Average Remaining Contractual Life 5 years 4 months 24 days   5 years
Exercisable as of June 30, 2025, Weighted Average Remaining Contractual Life 4 years 9 months 18 days