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SECURITIES - Equity securities (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
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Equity Securities - Readily determinable fair value |  |
Equity Securities, Readily determinable fair value, cost | $ 3,098 | $ 3,098
Equity Securities, Readily determinable fair value, Cumulative Net Unrealized Gains (Losses) | 268 | 194
Equity securities, Readily determinable fair value, Carrying Value | 3,366 | 3,292
Equity Securities - No readily determinable fair value |  |
Equity Securities, No readily determinable fair value, cost | 2,032 | 1,717
Equity Securities, No readily determinable fair value, Cumulative Net Unrealized Gains (Losses) | (165) | (165)
Equity securities: No readily determinable fair value, Carrying Value | 1,867 | 1,552
Upward adjustment on equity securities with no readily determinable fair value | $ 0 | $ 0

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