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LOANS HELD FOR INVESTMENT, NET - Impaired Loans (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2021
Unpaid Principal Balance |  |  |
With no related allowance recorded | $ 4,567 |  |
With related allowance recorded | 12,502 |  |
Total | 17,069 |  |
Recorded Investment |  |  |
With no related allowance recorded | 4,567 |  |
With related allowance recorded | 12,502 |  | $ 1,900
Total | 17,069 |  |
Related Allowance |  |  |
Valuation allowance | 6,474 |  |
Average Recorded Investment |  |  |
With no related allowance recorded | 3,562 | $ 4,189 |
Total | 14,167 | 9,314 |
Interest Income Recognized |  |  |
With no related allowance recorded | 7 | 282 |
Total | 8 | 295 |
One-to-four family residential and cooperative/condominium apartment |  |  |
Average Recorded Investment |  |  |
With no related allowance recorded | 1,179 | 9 |
Interest Income Recognized |  |  |
With no related allowance recorded |  | 9 |
Multifamily residential and residential mixed-use |  |  |
Unpaid Principal Balance |  |  |
With no related allowance recorded | 1,863 |  |
Recorded Investment |  |  |
With no related allowance recorded | 1,863 |  |
Average Recorded Investment |  |  |
With no related allowance recorded | 1,188 | 415 |
Interest Income Recognized |  |  |
With no related allowance recorded | 6 | 29 |
Commercial real estate ("CRE") |  |  |
Unpaid Principal Balance |  |  |
With no related allowance recorded | 2,704 |  |
Recorded Investment |  |  |
With no related allowance recorded | 2,704 |  |
Average Recorded Investment |  |  |
With no related allowance recorded | 1,195 | 3,765 |
Interest Income Recognized |  |  |
With no related allowance recorded | 1 | 244 |
Commercial and Industrial ("C&I") Loans |  |  |
Unpaid Principal Balance |  |  |
With related allowance recorded | 12,502 |  |
Recorded Investment |  |  |
With related allowance recorded | 12,502 |  |
Related Allowance |  |  |
Valuation allowance | 6,474 |  |
Average Recorded Investment |  |  |
With related allowance recorded | 10,605 | 5,125 |
Interest Income Recognized |  |  |
With related allowance recorded | $ 1 | $ 13 |

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