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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 | Jun. 30, 2024 | Jun. 30, 2023
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Debt Securities, Available-for-Sale [Line Items] |  |
Total AFS securities, Amortized Cost | $ 450,243 | $ 445,616
Gross Unrealized Gains | 2,680 | 1,494
Gross Unrealized Losses | (25,020) | (29,556)
Allowance for Credit Losses | 0 | 0
Estimated Fair Value | 427,903 | 417,554
Obligations of states and political subdivisions |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Total AFS securities, Amortized Cost | 29,960 | 45,285
Gross Unrealized Gains | 4 | 20
Gross Unrealized Losses | (2,211) | (2,737)
Allowance for Credit Losses | 0 | 0
Estimated Fair Value | 27,753 | 42,568
Corporate Obligations |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Total AFS securities, Amortized Cost | 32,998 | 35,700
Gross Unrealized Gains | 60 | 19
Gross Unrealized Losses | (1,781) | (3,181)
Allowance for Credit Losses | 0 | 0
Estimated Fair Value | 31,277 | 32,538
Asset backed securities |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Total AFS securities, Amortized Cost | 57,403 | 67,897
Gross Unrealized Gains | 1,525 | 1,274
Gross Unrealized Losses | (249) | (545)
Allowance for Credit Losses | 0 |
Estimated Fair Value | 58,679 | 68,626
Other securities |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Total AFS securities, Amortized Cost | 5,387 | 3,587
Gross Unrealized Gains | 20 | 39
Gross Unrealized Losses | (74) | (56)
Allowance for Credit Losses | 0 | 0
Estimated Fair Value | 5,333 | 3,570
Debt and Equity Securities |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Total AFS securities, Amortized Cost | 125,748 | 152,469
Gross Unrealized Gains | 1,609 | 1,352
Gross Unrealized Losses | (4,315) | (6,519)
Allowance for Credit Losses | 0 | 0
Estimated Fair Value | 123,042 | 147,302
Residential MBS issued by governmental sponsored enterprises (GSEs) |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Total AFS securities, Amortized Cost | 110,918 | 97,612
Gross Unrealized Gains | 692 | 122
Gross Unrealized Losses | (6,855) | (7,610)
Allowance for Credit Losses | 0 | 0
Estimated Fair Value | 104,755 | 90,124
Commercial MBS issued by GSEs |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Total AFS securities, Amortized Cost | 65,195 | 60,333
Gross Unrealized Gains | 297 | 11
Gross Unrealized Losses | (5,746) | (6,959)
Allowance for Credit Losses | 0 | 0
Estimated Fair Value | 59,746 | 53,385
CMOs issued by GSEs |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Total AFS securities, Amortized Cost | 148,382 | 135,202
Gross Unrealized Gains | 82 | 9
Gross Unrealized Losses | (8,104) | (8,468)
Allowance for Credit Losses | 0 | 0
Estimated Fair Value | 140,360 | 126,743
MBS and CMOs |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Total AFS securities, Amortized Cost | 324,495 | 293,147
Gross Unrealized Gains | 1,071 | 142
Gross Unrealized Losses | (20,705) | (23,037)
Allowance for Credit Losses | 0 | 0
Estimated Fair Value | $ 304,861 | $ 270,252

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 + Details
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