Securities - Amortized Cost and Fair Value of Available-for-sale Securities, by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021
Amortized Cost
Within one year	$ 1,555
After one year but less than five years	7,236
After five years but less than ten years	28,516
After ten years	27,497
Total investment securities	64,804
Total AFS securities	205,663	$ 203,286
Estimated Fair Value
Within one year	1,562
After one year but less than five years	7,375
After five years but less than ten years	29,212
After ten years	28,160
Total investment securities	66,309
Available for sale securities	209,409	207,020
Debt and Equity Securities
Amortized Cost
Total AFS securities	64,804	67,260
Estimated Fair Value
Available for sale securities	66,309	68,679
Total MBS and CMOs
Amortized Cost
Total AFS securities	140,859	136,026
Estimated Fair Value
Available for sale securities	$ 143,100	$ 138,341