Consolidated Statements of Equity - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2018	$ 10,050	$ 119	$ 231,805	$ (134,970)	$ 107,004	$ 848	$ 107,852
Balance, shares at Dec. 31, 2018	925,000	11,886,000
Stock-based compensation			720		720		720
Stock-based compensation, shares		29,000
Dividends and distributions declared and undeclared
Common Stock				(4,647)	(4,647)		(4,647)
Series E Preferred				(434)	(434)		(434)
Common unit						(22)	(22)
Redemption of common units			102		102	(144)	(42)
Redemption of common units, shares		2,000
Net loss				(3,226)	(3,226)	(17)	(3,243)
Balance at Sep. 30, 2019	$ 10,050	$ 119	232,627	(143,277)	99,519	665	100,184
Balance, shares at Sep. 30, 2019	925,000	11,917,000
Balance at Jun. 30, 2019	$ 10,050	$ 119	232,405	(141,154)	101,420	771	102,191
Balance, shares at Jun. 30, 2019	925,000	11,911,000
Stock-based compensation			126		126		126
Stock-based compensation, shares		4,000
Dividends and distributions declared and undeclared
Series E Preferred				(145)	(145)		(145)
Redemption of common units			96		96	(96)
Redemption of common units, shares		2,000					1,765
Net loss				(1,978)	(1,978)	(10)	$ (1,988)
Balance at Sep. 30, 2019	$ 10,050	$ 119	232,627	(143,277)	99,519	665	100,184
Balance, shares at Sep. 30, 2019	925,000	11,917,000
Balance at Dec. 31, 2019	$ 10,050	$ 120	233,189	(147,582)	95,777	49	95,826
Balance, shares at Dec. 31, 2019	925,000	11,994,000
Stock-based compensation			211		211		211
Stock-based compensation, shares		14,000
Dividends and distributions declared and undeclared
Series E Preferred				(458)	(458)		(458)
Net loss				(14,027)	(14,027)	(5)	(14,032)
Balance at Sep. 30, 2020	$ 10,050	$ 120	233,400	(162,067)	81,503	44	81,547
Balance, shares at Sep. 30, 2020	925,000	12,008,000
Balance at Jun. 30, 2020	$ 10,050	$ 120	233,335	(157,091)	86,414	46	86,460
Balance, shares at Jun. 30, 2020	925,000	12,003,000
Stock-based compensation			65		65		65
Stock-based compensation, shares		5,000
Dividends and distributions declared and undeclared
Series E Preferred				(169)	(169)		(169)
Net loss				(4,807)	(4,807)	(2)	(4,809)
Balance at Sep. 30, 2020	$ 10,050	$ 120	$ 233,400	$ (162,067)	$ 81,503	$ 44	$ 81,547
Balance, shares at Sep. 30, 2020	925,000	12,008,000