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Summary Of Significant Accounting Policies - Additional Information (Details) |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 31, 2023 $ / shares shares | Mar. 31, 2000 USD ($) | Jun. 30, 2025 USD ($) shares | Jun. 30, 2024 USD ($) shares | Jun. 30, 2025 USD ($) shares | Jun. 30, 2024 USD ($) shares | Sep. 30, 2024 shares | Mar. 31, 2025 USD ($) | Dec. 31, 2024 USD ($) | Mar. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Shares sold in recent offering | shares | 9,798,980 |  |  |  |  |  |  |  |  |  |
Common stock outstanding after conversion | shares | 11,375,803 |  |  |  |  |  |  |  |  |  |
Common stock conversion price per share | $ / shares | $ 10 |  |  |  |  |  |  |  |  |  |
Common stock conversion ratio | 1.5309 |  | 1.5309 |  | 1.5309 |  |  |  |  |  |
Stock options | shares |  |  | 0 | 0 | 0 | 0 |  |  |  |  |
Stock options granted | shares |  |  |  |  |  |  | 878,916 |  |  |  |
FHLB restricted stock | $ |  |  | $ 656,000 |  | $ 656,000 |  |  |  | $ 1,400,000 |  |
Unexercised stock options | shares |  |  |  |  | 931,579 | 55,648 |  |  |  |  |
Credit losses on available for sale securities | $ |  |  | 0 | $ 0 | $ 0 | $ 0 |  |  | 0 |  |
Debt securities allowance for credit loss default rates percentage |  |  |  |  | 45.00% |  |  |  |  |  |
Accrued interest receivables on debt securities | $ |  |  |  |  | $ 42,000 |  |  |  |  |  |
ACL for HTM securities | $ |  |  | $ 2,651 | $ 4,667 | $ 2,651 | $ 4,667 |  | $ 3,000 | $ 4,000 | $ 5,000 | $ 6,000
M.H.C. |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of outstanding common stock owned | 86.30% |  |  |  |  |  |  |  |  |  |
Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restricted stock granted | shares |  |  |  |  |  |  | 343,562 |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |
Historical losses for all banks with assets | $ |  | $ 1,000,000,000 |  |  |  |  |  |  |  |  |
National loss history for banks with assets | $ |  | $ 1,000,000,000 |  |  |  |  |  |  |  |  |

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