DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Interest Rate Swaps (Details) - USD ($)	6 Months Ended	12 Months Ended
Jun. 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 9 months 4 days	8 years 3 months
Unrealized Losses	$ 209,000	$ 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 4 months 2 days	4 years 9 months 29 days
Unrealized Losses	$ 166,000	$ 270,000

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

Fixed interest rate related to the interest rate derivative.

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- Definition

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- Definition

Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Amount of unrealized gain (loss) related to derivatives designated as cash flow hedging instruments, recorded in results of operations to the extent that the cash flow hedge is determined to be ineffective.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

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