Consolidated Statements of Equity - USD ($) $ in Thousands	Series E Preferred Stock [Member] Accumulated Deficit [Member]	Series E Preferred Stock [Member] Parent [Member]	Series E Preferred Stock [Member]	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2017				$ 10,050	$ 118	$ 230,727	$ (130,489)	$ 110,406	$ 1,408	$ 111,814
Balance, shares at Dec. 31, 2017				925,000	11,834,000
Stock-based compensation						769		769		769
Stock-based compensation, shares					24,000
Issuance of common stock					$ 1	259		260		260
Issuance of common stock, shares					28,000
Issuance of common units									50	50
Dividends and distributions declared and undeclared
Common Stock							(9,268)	(9,268)		(9,268)
Series E Preferred	$ (578)	$ (578)	$ (578)
Common unit									(67)	(67)
Redemption of common units						50		50	(348)	(298)
Net earnings (loss)							5,365	5,365	(195)	5,170
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						670		670		670
Stock-based compensation, shares					54,000
Dividends and distributions declared and undeclared
Common Stock							(6,986)	(6,986)		(6,986)
Series E Preferred	(578)	(578)	(578)
Common unit									(23)	(23)
Redemption of common units					$ 1	714		715	(757)	(42)
Redemption of common units, shares					53,891
Net earnings (loss)							(5,048)	(5,048)	(19)	(5,067)
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						143		143		143
Stock-based compensation, shares					21,000
Dividends and distributions declared and undeclared
Series E Preferred	$ (617)	$ (617)	$ (617)
Net earnings (loss)							(19,064)	(19,064)	(7)	(19,071)
Balance at Dec. 31, 2020				$ 10,050	$ 120	$ 233,332	$ (167,263)	$ 76,239	$ 42	$ 76,281
Balance, shares at Dec. 31, 2020				925,000	12,015,000