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FAIR VALUE MEASUREMENT - Fair Value Option (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Asset Pledged as Collateral without Right    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total securities pledged as collateral $ 214,817 $ 211,411
Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Single family LHFS 14,075 128,041
Fair Value, Recurring | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Single family LHFS 14,075 128,041
Aggregate Unpaid Principal Balance 13,914 124,933
Fair Value Less Aggregate Unpaid Principal Balance $ 161 $ 3,108