Available for Sale Securities - Amortized cost, gross unrealized gains, gross unrealized losses, ACL, and approximate fair value of securities available for sale (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Jun. 30, 2024
Debt Securities, Available-for-Sale [Line Items]
Total AFS securities, Amortized Cost	$ 489,086	$ 450,243
Gross Unrealized Gains	2,141	2,680
Gross Unrealized Losses	(23,167)	(25,020)
Allowance for Credit Losses	0	0
Estimated Fair Value	468,060	427,903
Obligations of states and political subdivisions
Debt Securities, Available-for-Sale [Line Items]
Total AFS securities, Amortized Cost	29,855	29,960
Gross Unrealized Gains	3	4
Gross Unrealized Losses	(2,133)	(2,211)
Allowance for Credit Losses	0	0
Estimated Fair Value	27,725	27,753
Corporate obligations
Debt Securities, Available-for-Sale [Line Items]
Total AFS securities, Amortized Cost	33,075	32,998
Gross Unrealized Gains	114	60
Gross Unrealized Losses	(1,156)	(1,781)
Allowance for Credit Losses	0	0
Estimated Fair Value	32,033	31,277
Asset backed securities
Debt Securities, Available-for-Sale [Line Items]
Total AFS securities, Amortized Cost	40,962	57,403
Gross Unrealized Gains	995	1,525
Gross Unrealized Losses	(189)	(249)
Allowance for Credit Losses	0	0
Estimated Fair Value	41,768	58,679
Other securities
Debt Securities, Available-for-Sale [Line Items]
Total AFS securities, Amortized Cost	4,968	5,387
Gross Unrealized Gains	20	20
Gross Unrealized Losses	(66)	(74)
Allowance for Credit Losses	0	0
Estimated Fair Value	4,922	5,333
Debt securities
Debt Securities, Available-for-Sale [Line Items]
Total AFS securities, Amortized Cost	108,860	125,748
Gross Unrealized Gains	1,132	1,609
Gross Unrealized Losses	(3,544)	(4,315)
Allowance for Credit Losses	0	0
Estimated Fair Value	106,448	123,042
Residential MBS issued by governmental sponsored enterprises (GSEs)
Debt Securities, Available-for-Sale [Line Items]
Total AFS securities, Amortized Cost	137,613	110,918
Gross Unrealized Gains	721	692
Gross Unrealized Losses	(6,566)	(6,855)
Allowance for Credit Losses	0	0
Estimated Fair Value	131,768	104,755
Commercial MBS issued by GSEs
Debt Securities, Available-for-Sale [Line Items]
Total AFS securities, Amortized Cost	64,937	65,195
Gross Unrealized Gains	201	297
Gross Unrealized Losses	(5,385)	(5,746)
Allowance for Credit Losses	0	0
Estimated Fair Value	59,753	59,746
CMOs issued by GSEs
Debt Securities, Available-for-Sale [Line Items]
Total AFS securities, Amortized Cost	177,676	148,382
Gross Unrealized Gains	87	82
Gross Unrealized Losses	(7,672)	(8,104)
Allowance for Credit Losses	0	0
Estimated Fair Value	170,091	140,360
MBS and CMOs
Debt Securities, Available-for-Sale [Line Items]
Total AFS securities, Amortized Cost	380,226	324,495
Gross Unrealized Gains	1,009	1,071
Gross Unrealized Losses	(19,623)	(20,705)
Allowance for Credit Losses	0	0
Estimated Fair Value	$ 361,612	$ 304,861