Available for Sale Securities - Gross Unrealized Losses and Fair Value, Continuous Unrealized Loss Position (Details) $ in Thousands	Mar. 31, 2025 USD ($) security	Jun. 30, 2024 USD ($)
Debt Securities, Available-for-Sale [Line Items]
Less than 12 months, Fair Value	$ 82,102	$ 64,944
Less than 12 months, Unrealized Losses	653	690
12 months or more, Fair Value	198,593	247,960
12 months or more, Unrealized Losses	19,795	24,330
Total Fair Value	280,695	312,904
Total Unrealized Losses	20,448	25,020
Obligations of states and political subdivisions
Debt Securities, Available-for-Sale [Line Items]
Less than 12 months, Fair Value	6,083	3,720
Less than 12 months, Unrealized Losses	84	38
12 months or more, Fair Value	15,689	21,762
12 months or more, Unrealized Losses	1,834	2,173
Total Fair Value	21,772	25,482
Total Unrealized Losses	$ 1,918	2,211
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	35
Corporate obligations
Debt Securities, Available-for-Sale [Line Items]
Less than 12 months, Fair Value	$ 2,918
Less than 12 months, Unrealized Losses	6
12 months or more, Fair Value	18,939	25,295
12 months or more, Unrealized Losses	871	1,781
Total Fair Value	21,857	25,295
Total Unrealized Losses	$ 877	1,781
Number of individual securities in an unrealized loss position for less than 12 months | security	4
Number of individual securities in an unrealized loss position for more than 12 months | security	14
Asset backed securities
Debt Securities, Available-for-Sale [Line Items]
Less than 12 months, Fair Value	$ 2,577
Less than 12 months, Unrealized Losses	1
12 months or more, Fair Value	803	7,234
12 months or more, Unrealized Losses	179	249
Total Fair Value	3,380	7,234
Total Unrealized Losses	$ 180	249
Number of individual securities in an unrealized loss position for less than 12 months | security	1
Number of individual securities in an unrealized loss position for more than 12 months | security	3
Other securities
Debt Securities, Available-for-Sale [Line Items]
Less than 12 months, Fair Value	$ 19	4,404
Less than 12 months, Unrealized Losses		31
12 months or more, Fair Value	3,847	287
12 months or more, Unrealized Losses	66	43
Total Fair Value	3,866	4,691
Total Unrealized Losses	66	74
MBS and CMOs
Debt Securities, Available-for-Sale [Line Items]
Less than 12 months, Fair Value	70,505	56,820
Less than 12 months, Unrealized Losses	562	621
12 months or more, Fair Value	159,315	193,382
12 months or more, Unrealized Losses	16,845	20,084
Total Fair Value	229,820	250,202
Total Unrealized Losses	$ 17,407	$ 20,705
Number of individual securities in an unrealized loss position for less than 12 months | security	18
Number of individual securities in an unrealized loss position for more than 12 months | security	106