INVESTMENTS (Amortized Cost and Aggregate Fair Value of Debt Securities, by Contractual Maturity) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Investments [Abstract]
Available-for-sale Securities, Due in one year or less, Amortized Cost	$ 2,188
Available-for-sale Securities, Due in one year or less, Fair Value	2,210
Available-for-sale Securities, Due after one year through five years, Amortized Cost	16,146
Available-for-sale Securities, Due after one year through five years, Fair Value	16,335
Available-for-sale Securities, Due after five years through ten years, Amortized Cost	26,918
Available-for-sale Securities, Due after five years through ten years, Fair Value	26,974
Available-for-sale Securities, Due after ten years, Amortized Cost	53,431
Available-for-sale Securities, Due after ten years, Fair Value	53,606
Fixed maturities, Amortized Cost	98,683	$ 96,877
Available-for-sale Securities, Fair Value	99,125
Held-to-maturity Securities, Due in one year or less, Amortized Cost	0
Held-to-maturity Securities, Due in one year or less, Fair Value	0
Held-to-maturity Securities, Due after one year through five years, Amortized Cost	39
Held-to-maturity Securities, Due after one year through five years, Fair Value	41
Held-to-maturity Securities, Due after five years through ten years, Amortized Cost	5
Held-to-maturity Securities, Due after five years through ten years, Fair Value	6
Held-to-maturity Securities, Due after ten years, Amortized Cost	1,385
Held-to-maturity Securities, Due after ten years, Fair Value	1,402
Held-to-maturity Securities, Amortized Cost	1,429	1,449
Held-to-maturity Securities, Fair Value	$ 1,449	$ 1,443