EQUITY (Schedule of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Balance	$ 281,125	$ 212,910
Other Comprehensive Income (Loss), before Tax Period Change [Abstract]
Net change AOCI	(453)	(3,140)
Other Comprehensive Income (Loss), Tax [Abstract]
Income tax benefit	484	0
Balance	277,669	212,467
AOCI
Balance	7,633	37,697
Other Comprehensive Income (Loss), before Tax Period Change [Abstract]
Net unrealized gains (losses), before tax	(937)	431
Reclassification of fair value gains on sold or redeemed bonds into the Consolidated Statements of Operations		3,571
Net change AOCI	(453)	(3,140)
Other Comprehensive Income (Loss), Tax [Abstract]
Income tax benefit	484
Balance	7,180	34,557
Investments in Debt Securities [Member]
Balance	7,666	37,625
Other Comprehensive Income (Loss), before Tax Period Change [Abstract]
Net unrealized gains (losses), before tax	(1,763)	406
Reclassification of fair value gains on sold or redeemed bonds into the Consolidated Statements of Operations		3,571
Net change AOCI	(1,279)	(3,165)
Other Comprehensive Income (Loss), Tax [Abstract]
Income tax benefit	484
Balance	6,387	34,460
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance	(33)	72
Other Comprehensive Income (Loss), before Tax Period Change [Abstract]
Net unrealized gains (losses), before tax	826	25
Net change AOCI	826	25
Other Comprehensive Income (Loss), Tax [Abstract]
Balance	$ 793	$ 97