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Foreclosed Assets - Additional (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 31, 2025 | Sep. 30, 2025 | Sep. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Apr. 30, 2024 | Jun. 30, 2023
Fair Value of Assets and Liabilities |  |  |  |  |  |  |
Foreclosure on collateral supporting a construction loan |  |  |  |  | $ 1,400,000 | $ 1,400,000 | $ 2,300,000
Provision for valuation allowance on foreclosed assets (OREO), net |  | $ 0 | $ 0 | $ 378,767 | $ 937,100 |  |
Offer to sell the property | $ 1,100,000 |  |  |  |  |  |
One-to-four-family residential |  |  |  |  |  |  |
Fair Value of Assets and Liabilities |  |  |  |  |  |  |
In process of foreclosure amount |  | $ 190,013 |  | $ 66,645 |  |  |

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