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PREMISES AND FIXED ASSETS, NET AND PREMISES HELD FOR SALE (Details) | 12 Months Ended
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Dec. 31, 2023 USD ($) property | Dec. 31, 2022 USD ($) property | Dec. 31, 2021 USD ($)
PREMISES AND FIXED ASSETS, NET AND PREMISES HELD FOR SALE |  |  |
Premises and fixed assets, gross | $ 86,213,000 | $ 85,124,000 |
Less: accumulated depreciation and amortization | (41,345,000) | (38,375,000) |
Premises and fixed assets, net | 44,868,000 | 46,749,000 |
Depreciation and amortization | 6,700,000 | $ 7,400,000 | $ 6,500,000
Company's premises held for sale | $ 0 |  |
Number of real estate properties utilized | property | 1 |  |
Premises held for investment transferred to held for sale | $ 905,000 |  | $ 2,799,000
Number of real estate properties, sold | property |  | 1 |
Proceeds from sale of real estate |  | $ 1,900,000 |
Gain on sale |  | 1,400,000 |
Land |  |  |
PREMISES AND FIXED ASSETS, NET AND PREMISES HELD FOR SALE |  |  |
Premises and fixed assets, gross | 10,824,000 | 10,824,000 |
Buildings |  |  |
PREMISES AND FIXED ASSETS, NET AND PREMISES HELD FOR SALE |  |  |
Premises and fixed assets, gross | 21,173,000 | 21,688,000 |
Leasehold improvements |  |  |
PREMISES AND FIXED ASSETS, NET AND PREMISES HELD FOR SALE |  |  |
Premises and fixed assets, gross | 28,307,000 | 26,862,000 |
Furniture, fixtures and equipment |  |  |
PREMISES AND FIXED ASSETS, NET AND PREMISES HELD FOR SALE |  |  |
Premises and fixed assets, gross | $ 25,909,000 | $ 25,750,000 |

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