OTHER INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Intangible liabilities
Net	$ (1,282)	$ (2,872)
Future accretion of acquisition related intangible liabilities
Net	(1,282)	(2,872)
Acquired Below-Market Leases
Intangible liabilities
Gross balance	(3,521)	(6,618)
Accumulated amortization	2,239	3,746
Net	$ (1,282)	$ (2,872)
Average useful life (in years)	4 years	4 years
Amortization
Amortization expenses, above and below market leases	$ 1,590	$ 2,190	$ 1,066
Future accretion of acquisition related intangible liabilities
2020	(701)
2021	(347)
2022	(234)
2023	0
2024	0
Thereafter	0
Net	(1,282)	(2,872)
Acquired Above-Market Leases
Intangible assets
Gross balance	74	146
Accumulated amortization	(42)	(51)
Net	$ 32	$ 95
Average useful life (in years)	5 years	3 years
Amortization
Amortization expenses, above and below market leases	$ 63	$ 51	3
Future amortization of acquisition related intangible assets
2020	9
2021	5
2022	5
2023	6
2024	6
Thereafter	1
Net	32	95
Acquired In-Place Leases
Intangible assets
Gross balance	13,653	16,210
Accumulated amortization	(9,382)	(9,731)
Net	$ 4,271	$ 6,479
Average useful life (in years)	8 years	8 years
Amortization
Amortization expenses	$ 2,112	$ 3,691	808
Future amortization of acquisition related intangible assets
2020	1,349
2021	899
2022	663
2023	375
2024	375
Thereafter	610
Net	4,271	6,479
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
Tax Abatement
Amortization
Amortization expenses	0	0	276
Acquired Below-Market Ground Lease
Amortization
Amortization expenses	$ 0	$ 0	$ 93