Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Total Stockholders' Equity	Common Stock	Preferred Stock	Additional Paid-in Capital	Distributions in Excess of Earnings	Noncontrolling Interests	Series A Preferred Stock	Series A Preferred Stock Total Stockholders' Equity	Series A Preferred Stock Preferred Stock	Series A Preferred Stock Additional Paid-in Capital	Series A Preferred Stock Distributions in Excess of Earnings	Series L Preferred Stock	Series L Preferred Stock Total Stockholders' Equity	Series L Preferred Stock Preferred Stock	Series L Preferred Stock Distributions in Excess of Earnings	Series D Preferred Stock	Series D Preferred Stock Total Stockholders' Equity	Series D Preferred Stock Preferred Stock	Series D Preferred Stock Additional Paid-in Capital	Series D Preferred Stock Distributions in Excess of Earnings
Beginning balance (in shares) at Dec. 31, 2019			14,602,149	8,224,254						2,837,094					5,387,160
Beginning balance at Dec. 31, 2019	$ 278,195	$ 277,690	$ 15	$ 223,467	$ 794,825	$ (740,617)	$ 505			$ 70,633					$ 152,834
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distributions to noncontrolling interests	(51)						(51)
Stock-based compensation expense (in shares)			21,912
Stock-based compensation expense	222	222			222		0
Issuance of shares of stock (in shares)			203,349	19,145															19,145
Issuance of shares of stock	2,359	2,359		$ 473	2,359												$ 456	$ 456	$ 473	$ (17)	$ 0
Common dividends	(4,431)	(4,431)				(4,431)
Issuance of Series A Preferred Warrants	28	28			28
Dividends to holders of Series Preferred Stock								$ (9,579)	$ (9,579)			$ (9,579)	$ (8,406)	$ (8,406)		$ (8,406)	(21)	(21)			(21)
Reclassification of Series A preferred Stock to permanent equity (in shares)				1,570,421						1,570,421
Reclassification of Series A Preferred Stock to permanent equity	35,483	35,483		$ 38,837	(3,354)					$ 38,837
Redemption of Series A Preferred Stock (in shares)				(29,753)						(29,753)
Redemption of Series A Preferred Stock				$ (741)				(749)	(749)	$ (741)	$ 64	(72)
Redeemable preferred stock deemed dividends	(377)	(377)				(377)
Net (loss) income	(15,015)	(15,016)				(15,016)	1
Ending balance (in shares) at Dec. 31, 2020			14,827,410	9,784,067						4,377,762					5,387,160				19,145
Ending balance at Dec. 31, 2020	278,114	277,659	$ 15	$ 262,036	794,127	(778,519)	455			$ 108,729					$ 152,834				$ 473
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Contributions to noncontrolling interests	9						9
Distributions to noncontrolling interests	(118)						(118)
Stock-based compensation expense (in shares)			20,332
Stock-based compensation expense	220	220			220
Issuance of shares of stock (in shares)			8,521,589	37,712															37,712
Issuance of shares of stock	76,921	76,921	$ 9	$ 923	76,912												893	893	$ 923	$ (30)
Common dividends	(5,732)	(5,732)				(5,732)
Dividends to holders of Series Preferred Stock								(10,289)	(10,289)			(10,289)	$ (8,406)	$ (8,406)		$ (8,406)	$ (65)	$ (65)			$ (65)
Reclassification of Series A preferred Stock to permanent equity (in shares)				2,006,456						2,006,456
Reclassification of Series A Preferred Stock to permanent equity	45,806	45,806		$ 50,508	(4,702)			146,200		$ 50,508
Redemption of Series A Preferred Stock (in shares)				(112,881)						(112,881)
Redemption of Series A Preferred Stock				$ (2,806)				$ (2,700)	$ (2,700)	$ (2,806)	$ 219	$ (113)
Redeemable preferred stock deemed dividends	(253)	(253)				(253)
Net (loss) income	(851)	(850)				(850)	(1)
Ending balance (in shares) at Dec. 31, 2021			23,369,331	11,715,354						6,271,337					5,387,160				56,857
Ending balance at Dec. 31, 2021	$ 373,549	$ 373,204	$ 24	$ 310,661	$ 866,746	$ (804,227)	$ 345			$ 156,431					$ 152,834				$ 1,396