RELATED PARTY TRANSACTIONS AND FEES (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Due from Related Parties [RollForward]
Related party receivable, beginning	$ 101,649
Cash transfers	36,175
Advisory fees	(9,995)	$ (9,490)	$ (8,368)
Net income fee	(250)	(257)	(187)
Fees and commissions	(2,921)
Cost reimbursements	(1,954)
Interest income	4,859
Notes receivable purchased	(447)
Expenses paid by Advisor	(36)
Financing (mortgage payments)	(4,656)
Sales/purchases transactions	(9,818)
Income tax expense	5,593
Related party receivable, ending	111,665	101,649
Pillar Income Asset Management, Inc [Member]
Due from Related Parties [RollForward]
Cash transfers	36,175
Advisory fees	(9,995)	(9,490)	(8,368)
Net income fee	(250)	(257)	(187)
Fees and commissions	(2,921)
Cost reimbursements	(2,895)	(3,228)	$ (2,925)
Notes receivable purchased	(447)
Expenses paid by Advisor	(36)
Financing (mortgage payments)	(4,656)
Sales/purchases transactions	(9,818)
Income tax expense	5,593
Related party receivable, ending	10,750
American Realty Investors, Inc [Member]
Due from Related Parties [RollForward]
Related party receivable, beginning	101,649
Interest income	4,859
Related party receivable, ending	$ 106,508	$ 101,649