Available for Sale Securities - Amortized Cost and Fair Value of Available-for-sale Securities, by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Jun. 30, 2022
Amortized Cost
Within one year	$ 3,227
After one year but less than five years	29,339
After five years but less than ten years	64,436
After ten years	57,050
Total investment securities	154,052
Total AFS securities, Amortized Cost	453,103	$ 257,760
Estimated Fair Value
Within one year	3,216
After one year but less than five years	28,156
After five years but less than ten years	61,923
After ten years	57,081
Total investment securities	150,376
Available for sale securities	429,798	235,394
Debt and Equity Securities
Amortized Cost
Total AFS securities, Amortized Cost	154,052	68,687
Estimated Fair Value
Available for sale securities	150,376	64,809
Total MBS and CMOs
Amortized Cost
Total AFS securities, Amortized Cost	299,051	189,073
Estimated Fair Value
Available for sale securities	$ 279,422	$ 170,585