Consolidated Statements of Operations - USD ($)	8 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2014	Dec. 31, 2013
Interest income:
Available-for-sale securities	$ 1,683,035	$ 16,560,338	$ 16,411,730
Mortgage loans held-for-sale	0	3,634,264	0
Multi-family loans held in securitization trusts	0	21,158,102	0
Residential loans held in securitization trusts	0	4,438,634	0
Cash and cash equivalents	553	21,274	11,843
Interest expense:
Repurchase agreements - available-for-sale securities	(267,080)	(2,661,329)	(2,243,565)
Repurchase agreements - mortgage loans held-for-sale	0	(2,203,961)	0
Multi-family securitized debt obligations	0	(19,400,851)	0
Residential securitized debt obligations	0	(3,575,168)	0
Net interest income	1,416,508	17,971,303	14,180,008
Other income:
Realized gain (loss) on sale of investments, net	(98,382)	3,271,592	(31,581,087)
Unrealized gain (loss) and net interest income from Linked Transactions	4,822,727	10,605,848	5,838,309
Realized gain (loss) on derivative contracts, net	(75,551)	(18,214,460)	18,812,854
Unrealized gain (loss) on derivative contracts, net	(298,359)	(2,931,249)	878,100
Realized (loss) on mortgage loans held-for-sale	0	(776,971)	0
Unrealized gain on mortgage loans held-for-sale	0	329,728	0
Unrealized gain/(loss) on multi-family loans held in securitization trusts	0	1,473,485	0
Unrealized gain/(loss) on residential loans held in securitization trusts	0	3,059,647	0
Other income	0	59,590	0
Total other income (loss)	4,350,435	(3,122,790)	(6,051,824)
Expenses:
Management fee	244,882	2,627,592	1,287,077
General and administrative expenses	113,606	2,901,076	992,115
Operating expenses reimbursable to Manager	563,806	3,247,683	2,103,223
Other operating expenses	25,343	2,504,741	288,416
Compensation expense	0	253,635	230,923
Total expenses	947,637	11,534,727	4,901,754
Net income (loss)	4,819,306	3,313,786	3,226,430
Dividends to preferred stockholders	0	(2,887,296)	(44,827)
Net income (loss) attributable to common stockholders	4,819,306	426,490	3,181,603
Earnings (loss) per share:
Net income attributable to common stockholders (basic and diluted)	$ 4,819,306	$ 426,490	$ 3,181,603
Weighted average number of shares of common stock outstanding (in shares)	1,656,250	12,358,587	6,132,702
Basic and diluted income per share (in dollars per share)	$ 2.91	$ 0.03	$ 0.52
Dividends declared per share of common stock (in dollars per share)	$ 0.70	$ 1.47	$ 1.64