Investment in Unconsolidated Joint Venture - Statement of operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Operating Expenses
Our equity in net loss from unconsolidated joint venture	$ (218)	$ (236)	$ (626)	$ (492)
Corporate Joint Venture [Member]
Revenues
Rental revenues	834	830	2,499	2,648
Total revenues	834	830	2,499	2,648
Operating Expenses
Property operating expenses	270	319	715	773
Real estate taxes	12	11	34	34
General and administrative	2	3	7	5
Amortization	134	134	402	402
Depreciation	331	330	992	987
Total operating expenses	749	797	2,150	2,201
Operating income	85	33	349	447
Interest expense, net	478	463	1,471	1,302
Interest expense - amortization of deferred finance costs	43	43	129	129
Net loss	(436)	(473)	(1,251)	(984)
Our equity in net loss from unconsolidated joint venture	$ (218)	$ (236)	$ (626)	$ (492)