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Loans Receivable - Schedule of Portfolio Loans, Net of Deferred Costs and Fees (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Mar. 31, 2025 | Dec. 31, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans, Amount | $ 751,573 |  | $ 737,760 |  |  |
Loans, Percent | 100.00% |  | 100.00% |  |  |
Allowance for credit losses | $ (9,159) | $ (8,888) | $ (8,522) | $ (8,547) | $ (8,506) | $ (8,554)
Net loans | 742,414 |  | 729,238 |  |  |
Real Estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans, Amount | $ 703,422 |  | $ 694,892 |  |  |
Loans, Percent | 93.59% |  | 94.20% |  |  |
Allowance for credit losses | $ (8,071) | (7,819) | $ (7,712) | (7,854) | (7,797) | (7,997)
Real Estate | One To Four Family - Owner Occupied |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans, Amount | $ 152,524 |  | $ 141,867 |  |  |
Loans, Percent | 20.29% |  | 19.23% |  |  |
Allowance for credit losses | $ (2,211) | (1,647) | $ (1,858) | (1,627) | (1,697) | (1,728)
Real Estate | One To Four Family - Non Owner Occupied |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans, Amount | $ 94,469 |  | $ 99,824 |  |  |
Loans, Percent | 12.57% |  | 13.53% |  |  |
Allowance for credit losses | $ (667) | (617) | $ (742) | (1,002) | (1,015) | (1,030)
Real Estate | Commercial Owner Occupied |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans, Amount | $ 81,905 |  | $ 82,614 |  |  |
Loans, Percent | 10.90% |  | 11.20% |  |  |
Allowance for credit losses | $ (495) | (495) | $ (511) | (514) | (578) | (563)
Real Estate | Commercial Investor |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans, Amount | $ 328,212 |  | $ 328,680 |  |  |
Loans, Percent | 43.67% |  | 44.56% |  |  |
Allowance for credit losses | $ (3,733) | (4,032) | $ (3,592) | (3,709) | (3,570) | (3,725)
Real Estate | Construction and Land |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans, Amount | $ 34,893 |  | $ 30,578 |  |  |
Loans, Percent | 4.64% |  | 4.14% |  |  |
Allowance for credit losses | $ (868) | (955) | $ (940) | (745) | (763) | (772)
Real Estate | Farm Loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans, Amount | $ 11,419 |  | $ 11,329 |  |  |
Loans, Percent | 1.52% |  | 1.54% |  |  |
Allowance for credit losses | $ (97) | (73) | $ (69) | (257) | (174) | (179)
Consumer and Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans, Amount | $ 48,151 |  | $ 42,868 |  |  |
Loans, Percent | 6.41% |  | 5.80% |  |  |
Allowance for credit losses | $ (1,088) | (1,069) | $ (810) | (693) | (709) | (557)
Consumer and Commercial | Guaranteed By U.S. Government |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans, Amount | $ 2,265 |  | $ 2,902 |  |  |
Loans, Percent | 0.30% |  | 0.39% |  |  |
Consumer and Commercial | Commercial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans, Amount | $ 29,751 |  | $ 23,194 |  |  |
Loans, Percent | 3.96% |  | 3.14% |  |  |
Allowance for credit losses | $ (718) | (673) | $ (411) | (259) | (281) | (154)
Consumer and Commercial | Marine and Other Consumer Loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans, Amount | $ 16,135 |  | $ 16,772 |  |  |
Loans, Percent | 2.15% |  | 2.27% |  |  |
Allowance for credit losses | $ (370) | $ (396) | $ (399) | $ (434) | $ (428) | $ (403)

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