DERIVATIVE INSTRUMENTS (Details) - Interest Rate Swap [Member] - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Derivative Instruments [Abstract]
Derivative, notional amount	$ 36.6	$ 37.0
Derivative weighted average receive rate	4.37%	4.34%
Derivative weighted average pay rate	3.83%	3.84%
Weighted average maturity period	5 years 2 months 12 days	5 years 6 months
Designated as Hedging Instrument [Member] | Fair Value Hedging [Member]
Derivative Instruments [Abstract]
Derivative, notional amount	$ 6.6	$ 6.6
Derivative weighted average receive rate	2.94%	2.92%
Derivative weighted average pay rate	3.11%	3.11%
Weighted average maturity period	14 years 3 months 18 days	14 years 6 months