INVESTMENTS (Schedule of Unrealized Appreciation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Investments [Abstract]
Net change in unrealized gains (losses) on available-for-sale securities before deferred tax	$ (3,042)	$ 1,402
Deferred income tax	638	(476)
Net change in unrealized gains (losses) on available-for-sale securities	$ (2,404)	$ 926