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INVESTMENT SECURITIES AVAILABLE FOR SALE - Additional Information (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Investment with fair value classified as equity security | $ 15,159,000 |  | $ 15,159,000 |  | $ 10,836,000
Securities gains/(losses), net | 125,000 | $ 69,000 | 323,000 | $ 128,000 |
CRA Investment Fund [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Investment with fair value classified as equity security | 15,200,000 |  | 15,200,000 |  |
Securities gains/(losses), net | $ 125,000 |  | $ 323,000 |  |

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