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Stock-based Compensation - Additional Information (Detail) - USD ($)
6 Months Ended 12 Months Ended
Dec. 10, 2013
Dec. 31, 2016
Jun. 30, 2024
Jun. 30, 2023
Jul. 01, 2023
Sep. 09, 2022
Dec. 10, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares paid under ESOP     324,656 336,191      
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       9,348 9,130    
Employee Stock Ownership Plan ESOP Shares In ESOP Transferred     2,405        
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 [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period 7 years            
Shares authorized 167,000   481,125        
Restricted stock available for future grants     52,970        
Stock options granted     0        
Options vested during the period     0 0      
Weighted average recognition period for non-vested restricted stock awards     7 years        
Unrecognized compensation expense for non-vested restricted stock awards     $ 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 10 years 8 years          
Shares authorized 85,500         53,000 16,900
Restricted stock available for future grants     211,880        
Weighted average recognition period for non-vested restricted stock awards     3 years 2 months 12 days        
Unrecognized compensation expense for non-vested restricted stock awards     $ 617,000        
Stock based compensation expense     260,000 $ 327,000      
Tax benefit     $ 74,000 $ 93,000      
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 [Member]              
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