CONDENSED CONSOLIDATED STATEMENT OF EQUITY - USD ($)	Total	Preferred stock	Common stock	Additional paid-in capital	Cumulative distributions in excess of net income
Beginning balance (in shares) at Dec. 31, 2022		6,450,000
Beginning balance at Dec. 31, 2022	$ 82,202,000	$ 159,541,000	$ 823,000	$ 868,323,000	$ (946,485,000)
Beginning balance (in shares) at Dec. 31, 2022			13,718,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	14,000				14,000
Preferred stock dividends	(2,688,000)				(2,688,000)
Ending balance (in shares) at Mar. 31, 2023		6,450,000
Ending balance at Mar. 31, 2023	79,528,000	$ 159,541,000	$ 823,000	868,323,000	(949,159,000)
Ending balance (in shares) at Mar. 31, 2023			13,718,000
Beginning balance (in shares) at Dec. 31, 2022		6,450,000
Beginning balance at Dec. 31, 2022	82,202,000	$ 159,541,000	$ 823,000	868,323,000	(946,485,000)
Beginning balance (in shares) at Dec. 31, 2022			13,718,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(1,053,000)
Ending balance (in shares) at Jun. 30, 2023		6,450,000
Ending balance at Jun. 30, 2023	75,773,000	$ 159,541,000	$ 823,000	868,323,000	(952,914,000)
Ending balance (in shares) at Jun. 30, 2023			13,718,000
Beginning balance (in shares) at Mar. 31, 2023		6,450,000
Beginning balance at Mar. 31, 2023	79,528,000	$ 159,541,000	$ 823,000	868,323,000	(949,159,000)
Beginning balance (in shares) at Mar. 31, 2023			13,718,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(1,067,000)				(1,067,000)
Preferred stock dividends	(2,688,000)				(2,688,000)
Ending balance (in shares) at Jun. 30, 2023		6,450,000
Ending balance at Jun. 30, 2023	75,773,000	$ 159,541,000	$ 823,000	868,323,000	(952,914,000)
Ending balance (in shares) at Jun. 30, 2023			13,718,000
Beginning balance (in shares) at Dec. 31, 2023		6,450,000
Beginning balance at Dec. 31, 2023	$ 73,457,000	$ 159,541,000	$ 823,000	868,323,000	(955,230,000)
Beginning balance (in shares) at Dec. 31, 2023	13,718,000		13,718,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 323,000				323,000
Preferred stock dividends	(2,688,000)				(2,688,000)
Ending balance (in shares) at Mar. 31, 2024		6,450,000
Ending balance at Mar. 31, 2024	71,092,000	$ 159,541,000	$ 823,000	868,323,000	(957,595,000)
Ending balance (in shares) at Mar. 31, 2024			13,718,000
Beginning balance (in shares) at Dec. 31, 2023		6,450,000
Beginning balance at Dec. 31, 2023	$ 73,457,000	$ 159,541,000	$ 823,000	868,323,000	(955,230,000)
Beginning balance (in shares) at Dec. 31, 2023	13,718,000		13,718,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 341,000
Ending balance (in shares) at Jun. 30, 2024		6,450,000
Ending balance at Jun. 30, 2024	$ 68,422,000	$ 159,541,000	$ 823,000	868,323,000	(960,265,000)
Ending balance (in shares) at Jun. 30, 2024	13,718,000		13,718,000
Beginning balance (in shares) at Mar. 31, 2024		6,450,000
Beginning balance at Mar. 31, 2024	$ 71,092,000	$ 159,541,000	$ 823,000	868,323,000	(957,595,000)
Beginning balance (in shares) at Mar. 31, 2024			13,718,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	18,000				18,000
Preferred stock dividends	(2,688,000)				(2,688,000)
Ending balance (in shares) at Jun. 30, 2024		6,450,000
Ending balance at Jun. 30, 2024	$ 68,422,000	$ 159,541,000	$ 823,000	$ 868,323,000	$ (960,265,000)
Ending balance (in shares) at Jun. 30, 2024	13,718,000		13,718,000