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DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Interest Rate Swaps (Details) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2018 | Dec. 31, 2017
LIBOR | Federal Home Loan Bank advances | Trust III Debentures |  |
Derivative [Line Items] |  |
Receive Rate | 1.67% | 1.67%
LIBOR | Federal Home Loan Bank advances | Trust II Debentures |  |
Derivative [Line Items] |  |
Receive Rate | 3.35% |
Designated as Hedging Instrument | LIBOR | Trust II Debentures |  |
Derivative [Line Items] |  |
Receive Rate | 3.35% | 3.35%
Designated as Hedging Instrument | Cash Flow Hedging | Interest Rate Swap, 3 month LIBOR plus 1.67% |  |
Derivative [Line Items] |  |
Notional Amount | $ 2,000,000 | $ 2,000,000
Pay Rate | 5.979% | 5.979%
Maturity in Years | 7 years 6 months | 8 years 3 months
Unrealized Losses | $ 174,000 | $ 301,000
Designated as Hedging Instrument | Cash Flow Hedging | Interest Rate Swap, 3 month LIBOR plus 3.35% |  |
Derivative [Line Items] |  |
Notional Amount | $ 3,000,000 | $ 3,000,000
Pay Rate | 7.505% | 7.505%
Maturity in Years | 4 years 29 days | 4 years 9 months 29 days
Unrealized Losses | $ 134,000 | $ 270,000

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