Available for Sale Securities - Gross Unrealized Losses and Fair Value, Continuous Unrealized Loss Position (Details) $ in Thousands	Mar. 31, 2023 USD ($) security	Jun. 30, 2022 USD ($)
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 146,200	$ 180,937
Less than 12 Months, Unrealized Losses	2,490	15,584
12 Months or more, Fair Value	175,445	38,345
12 Months or more, Unrealized Losses	22,916	6,891
Fair Value, Total	321,645	219,282
Unrealized Losses , Total	25,406	22,475
US States and Political Subdivisions Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	9,413	31,985
Less than 12 Months, Unrealized Losses	98	2,639
12 Months or more, Fair Value	26,218	1,600
12 Months or more, Unrealized Losses	2,279	342
Fair Value, Total	35,631	33,585
Unrealized Losses , Total	$ 2,377	2,981
Number of individual securities in an unrealized loss position for less than 12 months | security	22
Number of individual securities in an unrealized loss position for more than 12 months | security	51
Corporate Obligations
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 18,451	10,944
Less than 12 Months, Unrealized Losses	750	420
12 Months or more, Fair Value	13,760	6,911
12 Months or more, Unrealized Losses	1,666	543
Fair Value, Total	32,211	17,855
Unrealized Losses , Total	$ 2,416	963
Number of individual securities in an unrealized loss position for less than 12 months | security	13
Number of individual securities in an unrealized loss position for more than 12 months | security	10
Asset backed securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 7,013
Less than 12 Months, Unrealized Losses	95
Fair Value, Total	7,013
Unrealized Losses , Total	95
Other Debt Obligations [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	1,962	418
Less than 12 Months, Unrealized Losses	19	43
12 Months or more, Fair Value	354
12 Months or more, Unrealized Losses	41
Fair Value, Total	2,316	418
Unrealized Losses , Total	$ 60	43
Number of individual securities in an unrealized loss position for less than 12 months | security	10
Number of individual securities in an unrealized loss position for more than 12 months | security	2
Total MBS and CMOs
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 109,361	137,590
Less than 12 Months, Unrealized Losses	1,528	12,482
12 Months or more, Fair Value	135,113	29,834
12 Months or more, Unrealized Losses	18,930	6,006
Fair Value, Total	244,474	167,424
Unrealized Losses , Total	$ 20,458	$ 18,488
Number of individual securities in an unrealized loss position for less than 12 months | security	33
Number of individual securities in an unrealized loss position for more than 12 months | security	113