Condensed Parent Company Only Financial Statements - Balance Sheets (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Cash and cash equivalents	$ 60,904	$ 53,979
Total assets	4,604,316	4,360,211
Subordinated debt (Note 7)	23,156	23,105
Total liabilities	4,115,568	3,914,153
Stockholders' equity	488,748	446,058
Total liabilities and stockholders' equity	4,604,316	4,360,211
Parent Company [Member]
Cash and cash equivalents	13,967	13,442	$ 8,964	$ 1,193
Other assets	52,220	52,178
Investment in common stock of Bank	446,131	404,247
Total assets	512,318	469,867
Accrued expenses and other liabilities	414	704
Subordinated debt (Note 7)	23,156	23,105
Total liabilities	23,570	23,809
Stockholders' equity	488,748	446,058
Total liabilities and stockholders' equity	$ 512,318	$ 469,867