Available for Sale Securities - Gross Unrealized Losses and Fair Value, Continuous Unrealized Loss Position (Details) $ in Thousands	Sep. 30, 2024 USD ($) security	Jun. 30, 2024 USD ($)
Debt Securities, Available-for-Sale [Line Items]
Less than 12 months, Fair Value	$ 20,717	$ 64,944
Less than 12 months, Unrealized Losses	122	690
12 months or more, Fair Value	220,597	247,960
12 months or more, Unrealized Losses	17,449	24,330
Total Fair Value	241,314	312,904
Total Unrealized Losses	17,571	25,020
Obligations of states and political subdivisions
Debt Securities, Available-for-Sale [Line Items]
Less than 12 months, Fair Value	1,413	3,720
Less than 12 months, Unrealized Losses	27	38
12 months or more, Fair Value	18,156	21,762
12 months or more, Unrealized Losses	1,500	2,173
Total Fair Value	19,569	25,482
Total Unrealized Losses	$ 1,527	2,211
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	40
Corporate obligations
Debt Securities, Available-for-Sale [Line Items]
12 months or more, Fair Value	$ 24,835	25,295
12 months or more, Unrealized Losses	1,291	1,781
Total Fair Value	24,835	25,295
Total Unrealized Losses	$ 1,291	1,781
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	17
Asset backed securities
Debt Securities, Available-for-Sale [Line Items]
12 months or more, Fair Value	$ 6,157	7,234
12 months or more, Unrealized Losses	213	249
Total Fair Value	6,157	7,234
Total Unrealized Losses	$ 213	249
Number of individual securities in an unrealized loss position for less than 12 months | security	0
Number of individual securities in an unrealized loss position for more than 12 months | security	5
Other securities
Debt Securities, Available-for-Sale [Line Items]
Less than 12 months, Fair Value	$ 4,235	4,404
Less than 12 months, Unrealized Losses	20	31
12 months or more, Fair Value	282	287
12 months or more, Unrealized Losses	31	43
Total Fair Value	4,517	4,691
Total Unrealized Losses	51	74
MBS and CMOs
Debt Securities, Available-for-Sale [Line Items]
Less than 12 months, Fair Value	15,069	56,820
Less than 12 months, Unrealized Losses	75	621
12 months or more, Fair Value	171,167	193,382
12 months or more, Unrealized Losses	14,414	20,084
Total Fair Value	186,236	250,202
Total Unrealized Losses	$ 14,489	$ 20,705
Number of individual securities in an unrealized loss position for less than 12 months | security	6
Number of individual securities in an unrealized loss position for more than 12 months | security	107