INVESTMENTS IN PARTNERSHIPS (Schedule of Income (Loss) in Earnings of Unconsolidated Venture) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
U.S. Real Estate Partnerships [Member]
Schedule of Equity Method Investments [Line Items]
Gross revenue	$ 2,575	$ 2,383
Operating expenses	2,133	2,127
Net income (loss)	(2,427)	(794)
Solar Ventures Investment [Member]
Schedule of Equity Method Investments [Line Items]
Gross revenue	55,905	27,327
Operating expenses	6,541	5,793
Net income (loss)	49,443	21,977
SAWHF
Schedule of Equity Method Investments [Line Items]
Gross revenue	4,130	4,308
Operating expenses	1,003	2,277
Net income (loss)	$ 781	$ (14,339)