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Loans - Additional information (Details) - USD ($) | Sep. 30, 2025 | Dec. 31, 2024
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Loans |  |
Accrued interest receivable | $ 4,500,000 | $ 4,200,000
Real estate-construction loans, percentage | 4.60% | 3.60%
Loan balances net of unearned income | $ 532,000 | $ 517,000

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