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COMMITMENTS AND CONTINGENCIES (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Commitment And Contingencies [Line Items] |  |  |
Rental expense | $ 2.7 | $ 2.5 | $ 2.4
Commitments to Extend Credit [Member] |  |  |
Commitment And Contingencies [Line Items] |  |  |
Commitments to extend credit | 684.2 | 629.0 |
Standby Letters of Credit [Member] |  |  |
Commitment And Contingencies [Line Items] |  |  |
Commitments to extend credit | 12.7 | $ 17.1 |
SBIC [Member] |  |  |
Commitment And Contingencies [Line Items] |  |  |
Unfunded commitment for investment | $ 2.2 |  |

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