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Loans Receivable and Allowance for Credit Losses - Loan Portfolio (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 receivable, gross | $ 587,548 |  | $ 707,472 |  |  |
Allowance for credit losses | (7,795) | $ (6,729) | (7,305) | $ (14,989) | $ (13,777) | $ (15,925)
Loans receivable, net | 579,753 |  | 700,167 |  |  |
Commercial Real Estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable, gross | 370,376 |  | 419,489 |  |  |
Allowance for credit losses | (2,436) | (2,275) | (2,241) | (7,958) | (5,620) | (6,089)
Residential Real Estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable, gross | 60,123 |  | 92,215 |  |  |
Allowance for credit losses | (519) | (639) | (596) | (678) | (671) | (607)
Commercial and Industrial |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable, gross | 122,161 |  | 129,608 |  |  |
Allowance for credit losses | (1,785) | (1,168) | (1,077) | (1,215) | (1,199) | (1,269)
Consumer and Other |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable, gross | 33,363 |  | 59,973 |  |  |
Allowance for credit losses | (3,050) | (2,607) | (3,386) | (5,133) | (6,280) | (7,843)
Construction |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable, gross | 1,494 |  | 3,830 |  |  |
Allowance for credit losses | (5) | (8) | (5) | (5) | (7) | (4)
Construction to Permanent - CRE |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans receivable, gross | 31 |  | 2,357 |  |  |
Allowance for credit losses | $ 0 | $ (32) | $ 0 | $ 0 | $ 0 | $ (113)

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