Available for Sale Securities - Amortized Cost and Fair Value of Available-for-sale Securities, by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024
Amortized Cost
Within one year	$ 1,448
After one year but less than five years	26,918
After five years but less than ten years	45,791
After ten years	40,342
Total investment securities	114,499
Total AFS securities, Amortized Cost	433,716	$ 450,243
Estimated Fair Value
Within one year	1,444
After one year but less than five years	26,576
After five years but less than ten years	44,128
After ten years	40,573
Total investment securities	112,721
Total AFS securities	420,209	427,903
MBS and CMOs
Amortized Cost
Total AFS securities, Amortized Cost	319,217	324,495
Estimated Fair Value
Total AFS securities	$ 307,488	$ 304,861