SURPLUS NOTES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 31, 2018
SURPLUS NOTES [Abstract]
Surplus notes payable to affiliate	$ 25,000	$ 25,000
Interest rate on surplus notes (in hundredths)	2.73%	1.35%	1.35%	1.35%
Period for review of interest rate	5 years	5 years	5 years
Interest expense (all affiliated)	$ 654	$ 337	$ 337