CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues:
Interest income from investments	$ 6,806	$ 9,150	$ 14,564	$ 17,362
Total revenues	11,667	10,832	23,364	20,716
Costs and expenses:
General and administrative expenses	3,462	2,373	6,226	4,136
Fees to Manager	0	2,069	1,230	4,072
Property operating expenses of real estate owned	2,626	786	4,673	1,549
Depreciation and amortization of real estate owned	4,320	1,090	7,904	2,119
Goodwill impairment loss	0	0	4,738	0
Internalization expenses	5	0	37,788	0
Total costs and expenses	10,413	6,318	62,559	11,876
Operating income (loss)	1,254	4,514	(39,195)	8,840
Other income (expense):
Equity in earnings (losses) from unconsolidated real estate venture	12	85	(154)	242
Net unrealized gain (loss) on investments	791	12,043	(10,170)	20,873
Interest expense	(3,067)	(1,776)	(6,279)	(2,989)
Other interest income	17	8	23	21
Total other income (loss)	(2,247)	10,360	(16,580)	18,147
Net income (loss)	(993)	14,874	(55,775)	26,987
Net income attributable to preferred stockholders	(5,245)	(5,094)	(10,451)	(10,126)
Less: Net loss attributable to non-controlling interests	652	0	2,598	0
Net income (loss) attributable to common stockholders	$ (5,586)	$ 9,780	$ (63,628)	$ 16,861
Basic earnings (loss) per share attributable to common stockholders	$ (0.24)	$ 0.46	$ (2.77)	$ 0.81
Diluted earnings (loss) per share attributable to common stockholders	(0.24)	0.46	(2.77)	0.81
Dividends declared per share of common stock	$ 0.23	$ 0.35	$ 0.46	$ 0.70
Rental and other property-related income from real estate owned [Member]
Revenues:
Revenues	$ 4,817	$ 1,638	$ 8,695	$ 3,087
Other revenues [Member]
Revenues:
Revenues	$ 44	$ 44	$ 105	$ 267