OTHER INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Intangible liabilities
Net	$ (1,070)	$ (3,576)
Future accretion of acquisition related intangible liabilities
Net	(1,070)	(3,576)
Acquired Below-Market Leases
Intangible liabilities
Gross balance	(2,902)	(18,893)
Accumulated amortization	1,832	15,317
Net	$ (1,070)	$ (3,576)
Average useful life	5 years	8 years
Amortization
Amortization expenses, above and below market leases	$ 1,066	$ 2,510	$ 2,571
Future accretion of acquisition related intangible liabilities
2018	(734)
2019	(242)
2020	(42)
2021	(42)
2022	(10)
Thereafter	0
Net	(1,070)	(3,576)
Acquired Above-Market Leases
Intangible assets
Gross balance	37	215
Accumulated amortization	0	(180)
Net	$ 37	$ 35
Average useful life	7 years	8 years
Amortization
Amortization expenses, above and below market leases	$ 3	$ 88	240
Future amortization of acquisition related intangible assets
2018	4
2019	5
2020	5
2021	5
2022	5
Thereafter	13
Net	37	35
Acquired in-place Leases
Intangible assets
Gross balance	11,087	11,551
Accumulated amortization	(7,700)	(8,443)
Net	$ 3,387	$ 3,108
Average useful life	9 years	10 years
Amortization
Amortization expenses	$ 808	$ 1,347	1,857
Future amortization of acquisition related intangible assets
2018	932
2019	691
2020	434
2021	434
2022	314
Thereafter	582
Net	3,387	3,108
Tax Abatement
Intangible assets
Gross balance		4,273
Accumulated amortization		(2,873)
Net	0	$ 1,400
Average useful life		8 years
Amortization
Amortization expenses	276	$ 551	551
Future amortization of acquisition related intangible assets
Net	0	1,400
Franchise Affiliation Fee
Amortization
Amortization expenses	0	33	394
Acquired Below-Market Ground Lease
Intangible assets
Gross balance		11,685
Accumulated amortization		(1,562)
Net		$ 10,123
Average useful life		84 years
Amortization
Amortization expenses	93	$ 140	$ 140
Future amortization of acquisition related intangible assets
Net		10,123
Trade Name And License
Intangible assets
Gross balance	2,957	2,957
Accumulated amortization	0	0
Net	2,957	2,957
Future amortization of acquisition related intangible assets
Net	$ 2,957	$ 2,957