CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Interest income	$ 26,856,000	$ 35,671,000
Interest expense	1,941,000	16,523,000
Net interest income	24,915,000	19,148,000
Realized gains (losses) on mortgage-backed securities	(7,397,000)	(28,380,000)
Unrealized gains (losses) on mortgage-backed securities	(88,866,000)	3,032,000
(Losses) gains on derivative instruments	45,472,000	(82,858,000)
Net portfolio income	(25,876,000)	(89,058,000)
Expenses
Management Fee Expense	1,621,000	1,377,000
Allocated Overhead	404,000	347,000
Compensation and related benefits	364,000	(436,000)
Directors fees and liability insurance	272,000	260,000
Audit, legal and other professional fees	318,000	255,000
Direct REIT operating expenses	421,000	206,000
Other administrative	93,000	132,000
Total expenses	3,493,000	2,141,000
Net income (loss)	$ (29,369,000)	$ (91,199,000)
Basic and diluted net income (loss) per share
Basic	$ (0.34)	$ (1.41)
Diluted	$ (0.34)	$ (1.41)
Weighted Average Shares Outstanding
Weighted Average Shares - Basic and Diluted	85,344,954	64,590,205
Dividends Per Share [Abstract]
Dividends Declared Per Common Share	$ 0.195	$ 0.240