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Stock-based Compensation - Additional Information (Detail) - USD ($)
3 Months Ended
Sep. 09, 2022
Sep. 30, 2025
Sep. 30, 2024
Jun. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares paid under ESOP   314,213   314,213
Employee Stock Ownership Plan Esop [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Minimum hours of service required   1000 hours    
Period of service to qualify for ESOP benefits   12 months    
Minimum age of employee to attain the plan   21 years    
Shares to be purchased for ESOP, from borrowed funds   384,900    
Shares to be purchased for ESOP, percentage of common stock   8.00%    
Repayment of loan on ESOP   20 years    
Percentage vested in accrued benefits   100.00%    
Vesting period   6 years    
Employee Stock Ownership Plan Esop [Member] | Employee Severance [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares paid under ESOP   0    
Employee Stock Ownership Plan Esop [Member] | Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Prorated vesting period   2 years    
Employee Stock Ownership Plan Esop [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Prorated vesting period   5 years    
Equity Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares authorized   673,575    
Equity Incentive Plan [Member] | Employee Stock Option        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares authorized   481,125    
Restricted stock available for future grants   211,880    
Stock options granted   0    
Stock options outstanding   0   0
Equity Incentive Plan [Member] | Restricted Stock And Restricted Stock Units Rsu [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares authorized   192,450    
Equity Incentive Plan [Member] | Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period 5 years      
Shares authorized 53,000      
Restricted stock available for future grants   52,970    
Weighted average recognition period for non-vested restricted stock awards   1 year 10 months 24 days    
Unrecognized compensation expense for non-vested restricted stock awards   $ 355,000    
Stock based compensation expense   46,000 $ 49,000  
Tax benefit   $ 13,000 $ 14,000  
2022 Equity Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares authorized   264,850    
2022 Equity Incentive Plan [Member] | Employee Stock Option        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares authorized   52,970    
Options vested during the period   0    
2022 Equity Incentive Plan [Member] | Restricted Stock And Restricted Stock Units Rsu [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares authorized   211,880