Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021		Dec. 31, 2020
Net Interest Income
Interest income		$ 24,686	$ 19,629	$ 14,228	$ 12,119	$ 11,171	$ 9,717	$ 13,369	$ 40,268	$ 70,662		$ 74,525
Interest expense		10,698	7,197	5,294	4,061	4,004	4,357	8,613	19,971	27,250		36,945
Total Net Interest Income		13,988	12,432	8,934	8,058	7,167	5,360	4,756	20,297	43,412		37,580
Other Income/(Loss)
Net interest component of interest rate swaps										(4,862)		731
Net realized gain/(loss)		6,822	(5,460)	4,374	(4,038)	661	(14,431)	(91,609)	(151,143)	1,698		(256,522)
Net unrealized gain/(loss)		3,704	29,461	9,685	19,849	16,754	21,465	100,179	(308,211)	62,699		(169,813)
Other income/(loss), net		0	0	0	37	47	(10)	(155)	1,652	37		1,534
Total Other Income/(Loss)		9,162	22,817	12,486	15,107	17,283	7,011	8,415	(456,779)	59,572		(424,070)
Expenses
Management fee to affiliate		1,800	1,693	1,667	1,654	1,656	1,698	1,678	2,149	6,814		7,181
Other operating expenses		3,229	2,997	2,981	4,150	3,238	4,340	4,184	4,149	13,357		15,911
Transaction related expenses		3,597	2,013	1,885	(167)	22	1,589	373	(3,219)	7,328		(1,235)
Restructuring related expenses						251	1,345	7,104	1,500	0		10,200
Excise tax						0	0	0	(815)	0		(815)
Servicing fees		1,052	849	672	615	539	540	566	579	3,188		2,224
Total Expenses		9,678	7,552	7,205	6,252	5,706	9,512	13,905	4,343	30,687		33,466
Income/(loss) before equity in earnings/(loss) from affiliates		13,472	27,697	14,215	16,913	18,744	2,859	(734)	(440,825)	72,297		(419,956)
Equity in earnings/(loss) from affiliates		(2,607)	6,882	1,278	26,336	21,942	17,187	3,434	(44,192)	31,889		(1,629)
Net Income/(Loss) from Continuing Operations						40,686	20,046	2,700	(485,017)	104,186		(421,585)
Net Income/(Loss) from Discontinued Operations						305	0	361	0	0		666
Net Income/(Loss)		10,865	34,579	15,493	43,249	40,991	20,046	3,061	(485,017)	104,186		(420,919)
Gain on Exchange Offers, net		0	0	114	358	10,035	539	0	0	472		10,574
Dividends on preferred stock										(18,785)		(20,549)
Net Income/(Loss) Available to Common Stockholders		$ 6,279	$ 29,993	$ 10,918	$ 38,683	$ 47,374	$ 15,022	$ (2,606)	$ (490,684)	$ 85,873		$ (430,894)
Earnings/(Loss) Per Share - Basic
Continuing Operations (in dollars per share)						$ 3.47	$ 1.31	$ (0.27)	$ (44.98)	$ 5.29	[1]	$ (36.79)	[1]
Discontinued Operations (in dollars per share)						0.02	0	0.03	0	0	[1]	0.06	[1]
Total Earnings/(Loss) Per Share of Common Stock (in dollars per share)		$ 0.33	$ 1.87	$ 0.70	$ 2.74	3.49	1.31	(0.24)	(44.98)	5.29	[1]	(36.73)	[1]
Earnings/(Loss) Per Share - Diluted
Continuing Operations (in dollars per share)						3.47	1.31	(0.27)	(44.98)	5.29	[1]	(36.79)	[1]
Discontinued Operations (in dollars per share)						0.02	0	0.03	0	0	[1]	0.06	[1]
Total Earnings/(Loss) Per Share of Common Stock (in dollars per share)		$ 0.33	$ 1.87	$ 0.70	$ 2.74	$ 3.49	$ 1.31	$ (0.24)	$ (44.98)	$ 5.29	[1]	$ (36.73)	[1]
Weighted Average Number of Shares of Common Stock Outstanding
Basic (in dollars per share)	[1]									16,234		11,730
Diluted (in dollars per share)	[1]									16,234		11,730

[1] Amounts have been adjusted to reflect the one-for-three reverse stock split effected July 22, 2021. See Note 2 and Note 11 for additional details.