Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Interest income:
Available-for-sale securities	$ 0	$ 7,079,590
Commercial mortgage loans held-for-investment	9,904,188	0
Multi-family loans held in securitization trusts	78,361	13,227,188
Residential loans held in securitization trusts	0	1,147,641
Cash and cash equivalents	0	61,042
Interest expense:
Repurchase agreements - available-for-sale securities	0	(4,951,537)
Collateralized loan obligations	(5,446,889)	0
Secured term loan	(329,113)	0
Multi-family securitized debt obligations	0	(12,526,295)
Residential securitized debt obligations	0	(920,057)
Net interest income	4,206,547	3,117,572
Other income:
Realized gain (loss) on investments, net	(709,439)	(2,848,007)
Realized gain (loss) on derivative contracts, net	0	2,792,794
Change in unrealized gain (loss) on derivative contracts, net	0	12,783,088
Change in unrealized gain (loss) on mortgage servicing rights	(379,998)	57,689
Change in unrealized gain (loss) on multi-family loans held in securitization trusts	694,339	(1,355,774)
Change in unrealized gain (loss) on residential loans held in securitization trusts	0	(255,403)
Servicing income	248,214	219,978
Other income	0	15,875
Total other income (loss)	(146,884)	11,410,240
Expenses:
Management fee	553,459	576,135
General and administrative expenses	1,466,685	1,390,061
Operating expenses reimbursable to manager	540,037	746,092
Other operating expenses	37,757	404,469
Compensation expense	50,023	96,055
Total expenses	2,647,961	3,212,812
Net income (loss) before provision for income taxes	1,411,702	11,315,000
(Provision for) income taxes	63,065	0
Net income (loss)	1,474,767	11,315,000
Dividends to preferred stockholders	(480,472)	(880,509)
Deemed dividend on preferred stock related to redemption	(3,093,028)	0
Net income (loss) attributable to common stockholders (basic and diluted)	(2,098,733)	10,434,491
Earnings (loss) per share:
Net income (loss) attributable to common stockholders (basic and diluted)	$ (2,098,733)	$ 10,434,491
Weighted average number of shares of common stock outstanding (in shares)	23,687,664	23,392,387
Basic and diluted income (loss) per share (in dollars per share)	$ (0.09)	$ 0.45
Dividends declared per share of common stock (in dollars per share)	$ 0.07	$ 0.10