Earnings Per Share - Schedule of Calculation of Numerator and Denominator in Earnings Per Share (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share [Abstract]
Net income (loss) from continuing operations	$ 2,930,000	$ (36,219,000)	$ 1,877,000	$ (77,374,000)
Preferred stock dividends	(2,688,000)	(2,688,000)	(8,064,000)	(8,064,000)
Net loss attributable to noncontrolling interests	0	147,000	0	299,000
Net earnings allocated to unvested shares	0	17,000	0	58,000
Income (loss) from continuing operations, net of noncontrolling interest, attributable to vested common shares	242,000	(38,743,000)	(6,187,000)	(85,081,000)
Income from discontinued operations, net of noncontrolling interests, attributable to vested common shares	0	125,381,000	0	122,742,000
Net income (loss) attributable to vested common shares	242,000	86,638,000	(6,187,000)	37,661,000
Net income (loss) attributable to vested common shares	$ 242,000	$ 86,638,000	$ (6,187,000)	$ 37,661,000
Weighted average number of vested common shares outstanding, basic (in shares)	13,718,000	13,494,000	13,718,000	13,357,000
Weighted average number of vested common shares outstanding, diluted (in shares)	13,718,000	13,494,000	13,718,000	13,357,000
Net income (loss) per common share attributable to common shareholders (basic and diluted):
Continuing operations, basic (in dollars per share)	$ 0.02	$ (2.87)	$ (0.45)	$ (6.37)
Continuing operations, diluted (in dollars per share)	0.02	(2.87)	(0.45)	(6.37)
Discontinued operations, basic (in dollars per share)	0	9.29	0	9.19
Discontinued operations, diluted (in dollars per share)	0	9.29	0	9.19
NET INCOME (LOSS) PER COMMON SHARE ATTRIBUTABLE TO COMMON SHAREHOLDERS, BASIC (in dollars per share)	0.02	6.42	(0.45)	2.82
NET INCOME (LOSS) PER COMMON SHARE ATTRIBUTABLE TO COMMON SHAREHOLDERS, DILUTED (in dollars per share)	$ 0.02	$ 6.42	$ (0.45)	$ 2.82