LEASES (Narrative) (Details) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2020 USD ($) lease	Dec. 31, 2019	Jan. 01, 2019 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lessor, weighted average remaining lease term		8 years 6 months
Number of operating leases | lease		1
Operating lease, remaining lease term		12 years 10 months 24 days
Accounting Standards Update [Extensible List]		us-gaap:AccountingStandardsUpdate201602Member	us-gaap:AccountingStandardsUpdate201613Member
Operating lease, discount rate	4.30%	4.30%
Ground lease, expense	$ 63	$ 188
Ground lease, payments	61	182
Future minimum rental payments, remainder of 2020	63	63
Future minimum rental payments, 2021	250	250
Future minimum rental payments, 2022	250	250
Future minimum rental payments, 2023	250	250
Future minimum rental payments, 2024	250	250
Future minimum rental payments, 2025	250	250
Future minimum rental payments, thereafter	1,900	1,900
ASC 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease liability	2,500	2,500		$ 2,700
Operating lease, right-of-use asset	$ 2,500	$ 2,500		$ 2,700