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Loans and Allowance for Loan Credit Losses - Schedule of Composition of the Loan Portfolio (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022
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Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |
Total Loans | $ 300,032 |  | $ 304,144 |  |  |  |
Less allowance for credit losses | (4,206) | $ (4,337) | (4,319) |  | $ (4,400) | $ (4,399) | $ (4,482)
Loans, net | 295,826 |  | 299,825 | [1] |  |  |
Commercial real estate |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |
Total Loans | 51,387 |  | 60,138 |  |  |  |
Less allowance for credit losses | (1,022) | (1,136) | (1,233) |  | (1,040) | (1,142) | (905)
Commercial |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |
Total Loans | 11,144 |  | 12,438 |  |  |  |
Less allowance for credit losses | (164) | (167) | (189) |  | (191) | (239) | (573)
Residential real estate closed-end |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |
Total Loans | 218,129 |  | 210,358 |  |  |  |
Less allowance for credit losses | (2,774) | (2,756) | (2,668) |  | (2,963) | (2,793) | (2,650)
Other consumer loans |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |
Total Loans | 19,372 |  | 21,210 |  |  |  |
Less allowance for credit losses | $ (246) | $ (278) | $ (229) |  | $ (206) | $ (225) | $ (354)
[1] | Derived from audited financial statements.

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