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v3.25.3

Basis of Presentation (Details) |  |  | 3 Months Ended |
--- | --- | --- | --- | ---
Apr. 21, 2025 USD ($) $ / shares shares | Apr. 14, 2021 | Sep. 30, 2025 subsidiary facility shares | Sep. 30, 2024 shares | Apr. 20, 2025 USD ($)
Property, Plant and Equipment [Line Items] |  |  |  |  |
Sale of stock, percentage of ownership after transaction |  | 45.00% |  |  |
Shares of common stock issued | shares | 1,693,411 |  |  |  |
Shares issued to the ESOP | shares | 135,472 |  |  |  |
Share price | $ / shares | $ 10 |  |  |  |
Exchange ratio for conversion of shares | 1.3728 |  |  |  |
Gross offering proceeds | $ | $ 16,900,000 |  |  |  |
Offering expenses | $ | $ 1,700,000 |  |  |  |
Shares released | shares | 135,472 |  | 2,363 | 874 |
Amount of ESOP loan | $ | $ 2,100,000 |  |  |  | $ 777,212
Annual installments maturity term | 25 years |  |  |  |
Number of business facilities | facility |  |  | 5 |  |
Nonbank subsidiaries | subsidiary |  |  | 2 |  |
Marathon Mutual Holding Company |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Sale of stock, percentage of ownership before transaction |  | 55.00% |  |  |

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- Definition Period of time between issuance and maturity of ESOP loan, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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