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FAIR VALUE OF ASSETS AND LIABILITIES - Impaired Loans (Details) - Non-recurring	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Assets and liabilities measured on non-recurring basis
Liabilities, Fair value	$ 0	$ 0
Level 3 | Residential loans
Assets and liabilities measured on non-recurring basis
Assets, Fair value	15,037,000	47,463,000
Level 3 | Collateral-dependent loans | Sales Comparison Approach
Assets and liabilities measured on non-recurring basis
Assets, Fair value	$ 15,037,000	$ 47,463,000
Level 3 | Collateral-dependent individually analyzed loans | Appraisal of collateral
Assets and liabilities measured on non-recurring basis
Measurement input	0.06	0.06

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