v3.25.2
Stock-based Compensation - Summary of Non-vested Restricted Stock Activity (Detail) - Restricted Stock [Member] - $ / shares
12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Beginning balance, Shares 40,800 62,314
Granted, Shares
Forfeited, Shares 1,500 1,600
Earned and issued, Shares 10,200 19,914
Ending balance, Shares 29,100 40,800
Beginning balance, Weighted-Average Grant-Date Fair Value $ 19.1 $ 18.76
Granted, Weighted-Average Grant-Date Fair Value
Forfeited, Weighted-Average Grant-Date Fair Value 19.1 19.1
Earned and issued, Weighted-Average Grant-Date Fair Value 19.1 18.76
Ending balance, Weighted-Average Grant-Date Fair Value $ 19.1 $ 19.1