Available for Sale Securities - Amortized Cost and Fair Value of Available-for-sale Securities, by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Jun. 30, 2024
Amortized Cost
Within one year	$ 81
After one year but less than five years	28,318
After five years but less than ten years	44,990
After ten years	29,699
Total investment securities	103,088
Total AFS securities, Amortized Cost	480,831	$ 450,243
Estimated Fair Value
Within one year	82
After one year but less than five years	28,060
After five years but less than ten years	43,057
After ten years	29,705
Total investment securities	100,904
Total AFS securities	462,930	427,903
MBS and CMOs
Amortized Cost
Total AFS securities, Amortized Cost	377,743	324,495
Estimated Fair Value
Total AFS securities	$ 362,026	$ 304,861