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Securities - Amortized Cost and Fair Value of Securities Available-for-Sale (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Jun. 30, 2024
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Securities [Abstract] |  |  |
Amortized cost, total securities available-for-sale | [1] | $ 373,966 | $ 376,179
Unrealized gains |  | 1,687 | 910
Unrealized losses |  | 19,591 | 27,088
Fair value |  | 356,062 | 350,001
U.S. Treasury Securities [Member] |  |  |
Securities [Abstract] |  |  |
Amortized cost, total securities available-for-sale | [1] | 10,815 | 43,024
Unrealized gains |  | 0 | 0
Unrealized losses |  | 362 | 1,829
Fair value |  | 10,453 | 41,195
U.S. Government Sponsored Enterprises [Member] |  |  |
Securities [Abstract] |  |  |
Amortized cost, total securities available-for-sale | [1] | 13,029 | 13,042
Unrealized gains |  | 0 | 0
Unrealized losses |  | 1,385 | 2,068
Fair value |  | 11,644 | 10,974
State and Political Subdivisions [Member] |  |  |
Securities [Abstract] |  |  |
Amortized cost, total securities available-for-sale | [1] | 208,450 | 169,842
Unrealized gains |  | 1,394 | 828
Unrealized losses |  | 0 | 1
Fair value |  | 209,844 | 170,669
Mortgage-backed Securities-Residential [Member] |  |  |
Securities [Abstract] |  |  |
Amortized cost, total securities available-for-sale | [1] | 34,382 | 40,402
Unrealized gains |  | 212 | 67
Unrealized losses |  | 3,007 | 3,894
Fair value |  | 31,587 | 36,575
Mortgage-backed Securities-Multi-family [Member] |  |  |
Securities [Abstract] |  |  |
Amortized cost, total securities available-for-sale | [1] | 88,874 | 90,261
Unrealized gains |  | 0 | 0
Unrealized losses |  | 14,277 | 17,961
Fair value |  | 74,597 | 72,300
Corporate Debt Securities [Member] |  |  |
Securities [Abstract] |  |  |
Amortized cost, total securities available-for-sale | [1] | 18,416 | 19,608
Unrealized gains |  | 81 | 15
Unrealized losses |  | 560 | 1,335
Fair value |  | $ 17,937 | $ 18,288
[1] | Amortized cost excludes accrued interest receivable of $4.5 million and $4.0 million at June 30, 2025 and June 30, 2024, respectively, which is included in accrued interest receivable in the consolidated statements of financial condition.

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