CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Interest income	$ 29,254,000	$ 27,258,000	$ 56,110,000	$ 62,929,000
Interest expense	1,556,000	4,479,000	3,497,000	21,002,000
Net interest income	27,698,000	22,779,000	52,613,000	41,927,000
Realized gains (losses) on mortgage-backed securities	1,352,000	3,360,000	(6,045,000)	(25,020,000)
Unrealized gains (losses) on mortgage-backed securities	(7,281,000)	34,240,000	(96,147,000)	37,272,000
(Losses) gains on derivative instruments	(34,915,000)	(8,851,000)	10,557,000	(91,709,000)
Net portfolio income	(13,146,000)	51,528,000	(39,022,000)	(37,530,000)
Expenses
Management Fee Expense	1,792,000	1,268,000	3,413,000	2,645,000
Allocated Overhead	395,000	348,000	799,000	695,000
Compensation and related benefits	261,000	161,000	625,000	(275,000)
Directors fees and liability insurance	323,000	248,000	595,000	508,000
Audit, legal and other professional fees	302,000	346,000	620,000	601,000
Direct REIT operating expenses	294,000	240,000	715,000	446,000
Other administrative	352,000	145,000	445,000	277,000
Total expenses	3,719,000	2,756,000	7,212,000	4,897,000
Net income (loss)	$ (16,865,000)	$ 48,772,000	$ (46,234,000)	$ (42,427,000)
Basic and diluted net income (loss) per share
Basic	$ (0.17)	$ 0.74	$ (0.50)	$ (0.65)
Diluted	$ (0.17)	$ 0.73	$ (0.50)	$ (0.65)
Weighted Average Shares Outstanding
Weighted Average Shares - Basic and Diluted	99,489,065	66,310,219	92,456,082	65,408,722
Dividends Per Share [Abstract]
Dividends Declared Per Common Share	$ 0.195	$ 0.165	$ 0.390	$ 0.405