QUARTERLY FINANCIAL DATA (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues
Rental revenues	$ 542	$ 946	$ 1,281	$ 1,293	$ 1,347	$ 1,298	$ 673	$ 397	$ 4,062	$ 3,715	$ 1,862
Total revenues	542	946	1,281	1,293	1,347	1,298	673	397	4,062	3,715	1,862
Operating Expenses
Property operating expenses	2,641	1,191	816	680	737	598	382	187	5,328	1,904	850
Real estate taxes	64	90	90	84	77	85	81	78	328	321	467
General and administrative	1,377	1,286	1,373	1,313	1,375	1,280	1,413	1,424	5,349	5,492	5,375
Pension related costs	184	183	183	183	86	50	50	50	733	236	203
Transaction related costs	1	29	112	25	212	170	0	0	167	382	83
Depreciation and amortization	600	600	837	940	626	1,193	515	129	2,977	2,463	544
Total operating expenses	4,867	3,379	3,411	3,225	3,113	3,376	2,441	1,868	14,882	10,798	10,948
Gain on sale of real estate	9,521								9,521	0	3,853
Equity in net loss from unconsolidated joint venture	(194)	(218)	(186)	(221)	(236)	(236)	(139)	(117)	(819)	(728)	(1,057)
Interest income, net	14	14	18	21	30	36	93	53	67	212	215
Loss before tax expense					(1,972)	(2,278)	(1,814)	(1,535)
Loss before taxes	5,016	(2,637)	(2,298)	(2,132)					(2,051)	(7,599)	(5,032)
Tax (expense) benefit	71	(8)	(110)	(81)	(214)	(26)	(27)	(23)	(128)	(290)	3,011
Net loss attributable to common stockholders	$ 5,087	$ (2,645)	$ (2,408)	$ (2,213)	$ (2,186)	$ (2,304)	$ (1,841)	$ (1,558)	$ (2,179)	$ (7,889)	$ (2,021)
(Loss) income per share - basic and diluted	$ 0.16	$ (0.08)	$ (0.08)	$ (0.07)	$ (0.07)	$ (0.07)	$ (0.06)	$ (0.05)	$ (0.07)	$ (0.25)	$ (0.07)
Weighted average number of common shares - basic and diluted	31,972	31,953	31,918	31,796	31,647	31,639	31,612	31,531	31,915	31,607	30,451