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Summary of Significant Accounting Policies (Unaudited) (Details) |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Jul. 31, 2024 USD ($) $ / shares shares | Jun. 30, 2025 USD ($) shares | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) segment shares | Jun. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) shares
Summary of Significant Accounting Policies (Unaudited) |  |  |  |  |  |
Common stock, per share | $ / shares | $ 10 |  |  |  |  |
Proceeds from Issuance of Common Stock | $ 54,594,730 |  |  |  |  |
Payments of Stock Issuance Costs | $ 2,400,000 |  |  |  |  |
Stock Issued During Period Shares New Issues To Charitable Foundation | shares | 100,000 |  |  |  |  |
Employee Stock Ownership Plan (ESOP), Shares Contributed to ESOP | shares | 444,758 |  |  |  |  |
Percent of employee stock ownership plan stock over total common stock issued | 8.00% |  |  |  |  |
Common stock, issued (in shares) | shares | 5,559,473 | 5,559,473 |  | 5,559,473 |  | 5,559,473
Net Proceeds From The Offering To The Bank | $ 26,097,000 |  |  |  |  |
Employee Stock Ownership Plan (ESOP), Loan Amount | 4,447,580 |  |  |  |  |
Net Proceeds Of The Offering, Amount Retained | $ 21,400,000 |  |  |  |  |
Number of reporting segments | segment |  |  |  | 1 |  |
Bank deposit accounts in excess of FDIC limit of $250,000 per institution |  | $ 18,329,000 |  | $ 18,329,000 |  | $ 27,315,000
Deposit Limit |  | 250,000 |  | 250,000 |  | 250,000
Reserve Requirement With Federal Reserve Bank |  | 0 |  | 0 |  | 0
Held-to-maturity securities held |  | 0 |  | 0 |  | 0
Trading securities held |  | 0 |  | 0 |  | 0
Allowance for credit losses for available-for-sale securities |  | 0 |  | 0 |  | 0
Accrued interest receivable on available-for-sale securities |  | 382,000 |  | 382,000 |  | 348,000
Accrued interest receivable related to loans |  | 1,831,000 |  | 1,831,000 |  | 1,619,000
Bank Owned Life Insurance |  | 7,561,000 |  | 7,561,000 |  | 10,685,000
Appreciation in cash surrender value |  | 87,000 | $ 98,000 | 176,000 | $ 181,000 |
Real Estate Owned |  | 42,000 |  | 42,000 |  | $ 42,000
Interest and/or penalties recognized |  | 0 | 0 | 0 | 0 |
Dilutive securities |  |  |  | 0 |  |
Advertising and promotional expenses |  | $ 25,000 | $ 48,000 | $ 44,000 | $ 76,000 |
Fifth District Saving Bank |  |  |  |  |  |
Summary of Significant Accounting Policies (Unaudited) |  |  |  |  |  |
Ownership Percentage | 100.00% |  |  |  |  |
Fifth District Saving Bank |  |  |  |  |  |
Summary of Significant Accounting Policies (Unaudited) |  |  |  |  |  |
Number of shares sold on the conversion | shares | 5,459,473 |  |  |  |  |
Minimum | Building and Improvements |  |  |  |  |  |
Summary of Significant Accounting Policies (Unaudited) |  |  |  |  |  |
Estimated useful lives |  | 15 years |  | 15 years |  |
Minimum | Furniture and Fixtures |  |  |  |  |  |
Summary of Significant Accounting Policies (Unaudited) |  |  |  |  |  |
Estimated useful lives |  | 5 years |  | 5 years |  |
Maximum | Building and Improvements |  |  |  |  |  |
Summary of Significant Accounting Policies (Unaudited) |  |  |  |  |  |
Estimated useful lives |  | 40 years |  | 40 years |  |
Maximum | Furniture and Fixtures |  |  |  |  |  |
Summary of Significant Accounting Policies (Unaudited) |  |  |  |  |  |
Estimated useful lives |  | 10 years |  | 10 years |  |
Commercial loans |  |  |  |  |  |
Summary of Significant Accounting Policies (Unaudited) |  |  |  |  |  |
Percentage of loan balance purchased (in percent) |  | 100.00% |  | 100.00% |  |
Percentage of loan balance remitted to seller (in percent) |  | 97.00% |  | 97.00% |  |
Number Of Days Of delinquency Considered For Replacement Of delinquent Loans With Performing Loans By Seller |  |  |  | 90 days |  |
Percentage of loan balance that the seller establishes reserve deposit account (in percent) |  | 3.00% |  | 3.00% |  |

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