OPERATING SEGMENTS (Details 1) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment operating income (loss)	$ 3,299	$ 5,766	$ 5,842	$ 5,198	$ 3,450	$ 4,347	$ 5,770	$ 4,080	$ (1,111)	$ 2,926	$ 4,446	$ 3,040	$ 20,105	$ 17,647	$ 9,301
Other non-segment items of income (expense)
General and administrative													(6,269)	(5,476)	(5,508)
Provision on impairment of real estate assets															(5,300)
Net income fee to related party													(250)	(257)	(187)
Advisory fee to related party													(9,995)	(9,490)	(8,368)
Other income													625	1,816	71
Loss from unconsolidated joint ventures and investees													26	(26)	41
Litigation settlement															(352)
Income tax benefit (expense)	$ 180					25		(1)	881	(274)	12	(102)	(180)	(24)	(517)
Net income (loss) from continuing operations					$ 3,564	$ (4,432)	$ 4,756	$ (3,565)	$ (1,447)	$ (7,014)	$ 441	$ (380)	(15,316)	323	(8,400)
Total Segments [Member]
Segment operating income (loss)													5,263	13,780	11,721
Other non-segment items of income (expense)
General and administrative													(6,269)	(5,476)	(5,508)
Provision on impairment of real estate assets															(5,300)
Net income fee to related party													(250)	(257)	(187)
Advisory fee to related party													(9,995)	(9,490)	(8,368)
Other income													(3,911)	1,816	70
Loss from unconsolidated joint ventures and investees													26	(26)	41
Litigation settlement															(352)
Income tax benefit (expense)													5,252	(24)	(517)
Net income (loss) from continuing operations													$ (9,884)	$ 323	$ (8,400)