ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Amounts reclassified out of AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Net realized investment gains	$ 453	$ 75	$ 125	$ 312
Tax (expense) or benefit	(272)	225	(562)	1,358
Net Income (Loss)	$ 907	$ (557)	1,835	(1,872)	$ 1,203
Amounts Reclassified from Accumulated Other Comprehensive Income | Unrealized Gains and Losses on Available-for-Sale Securities
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Net realized investment gains			156	310
Total before tax			156	310
Tax (expense) or benefit			(33)	(105)
Net Income (Loss)			$ 123	$ 205