Earnings Per Share (Schedule of Calculation of Numerator and Denominator in Earnings Per Share) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Earnings Per Share [Abstract]
Net loss from continuing operations	$ (1,067,000)	$ (34,342,000)	$ (1,053,000)	$ (41,155,000)
Preferred stock dividends	(2,688,000)	(2,688,000)	(5,376,000)	(5,376,000)
Net loss attributable to noncontrolling interests		143,000		185,000
Net loss allocated to unvested shares		(18,000)		(41,000)
Loss from continuing operations, net of noncontrolling interest, attributable to vested common shares	(3,755,000)	(36,905,000)	(6,429,000)	(46,387,000)
Loss from discontinued operations, net of noncontrolling interests, attributable to vested common shares		(8,388,000)		(2,673,000)
Net loss attributable to vested common shares	$ (3,755,000)	$ (45,293,000)	$ (6,429,000)	$ (49,060,000)
Weighted average number of vested common shares outstanding, basic	13,718,000	13,288,000	13,718,000	13,287,000
Weighted average number of vested common shares outstanding, diluted	13,718,000	13,288,000	13,718,000	13,287,000
Continuing operations, basic per share	$ (0.27)	$ (2.78)	$ (0.47)	$ (3.49)
Continuing operations, diluted per share	(0.27)	(2.78)	(0.47)	(3.49)
Discontinued operations, basic per share		(0.63)		(0.20)
Discontinued operations, diluted per share		(0.63)		(0.20)
Net loss per common share attributable to common shareholders, basic	(0.27)	(3.41)	(0.47)	(3.69)
Net loss per common share attributable to common shareholders, diluted	$ (0.27)	$ (3.41)	$ (0.47)	$ (3.69)