DERIVATIVES (Summary of the Carrying Value of the Company's Hedged Assets in Fair Value Hedges) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)	$ 50,000
Portfolio, last-of-layer, amortized cost	225,000	$ 224,000
Available-for-sale Securities
Derivative [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)	225,063	224,241
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Assets/(Liabilities)	2,430	1,399
Loans
Derivative [Line Items]
Carrying Amount of Hedged Asset/(Liabilities)	86,527	87,596
Cumulative Amount of Basis Adjustments Included in the Carrying Amount of the Hedged Assets/(Liabilities)	(280)	(1,572)
Fair Value Hedges
Derivative [Line Items]
Fair value of aggregate notional amount of the hedged items, unrealized loss	299	1,600
Available-for-sale Securities
Derivative [Line Items]
Fair value of aggregate notional amount of the hedged items, unrealized loss	2,400	1,400
Available-for-sale Securities \| Fair Value Hedges
Derivative [Line Items]
Fair value of aggregate notional amount of the hedged items, unrealized loss	$ 2,400	$ 1,400

Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=109977999&loc=d3e76258-113986

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- Definition

Amortized cost of closed portfolio of prepayable financial asset and beneficial interest secured by prepayable financial instrument, used to designate hedging relationship in which hedged item is last layer expected to be remaining at end of hedging relationship.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4EEE
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL109999718-113959

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Amount of asset hedged in fair value hedging relationship.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4EE
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL109999712-113959

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Amount of cumulative increase (decrease) in fair value of hedged asset in fair value hedge, attributable to hedged risk.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4EE
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL109999712-113959

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