INVESTMENTS (Major Categories of Investment Gains and Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Gain (Loss) on Securities [Line Items]
Net investment gains	$ 548	$ 117	$ (442)	$ 2,237
Gains (losses) on trading securities	19	5	(6)	8
Realized gains on fixed maturities
Gain (Loss) on Securities [Line Items]
Net investment gains	133	5	16	15
Change in fair value of equity securities
Gain (Loss) on Securities [Line Items]
Net investment gains	104	26	(495)	152
Change in surrender value of company owned life insurance
Gain (Loss) on Securities [Line Items]
Net investment gains	291	81	40	270
Realized gain on company owned life insurance
Gain (Loss) on Securities [Line Items]
Net investment gains	0	0	0	1,792
Other gains principally real estate
Gain (Loss) on Securities [Line Items]
Net investment gains	$ 1	$ 0	$ 3	$ 0