CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Interest income	$ 27,223,000	$ 35,907,000	$ 90,152,000	$ 104,795,000
Interest expense	2,043,000	22,321,000	23,045,000	63,644,000
Net interest income	25,180,000	13,586,000	67,107,000	41,151,000
Realized gains (losses) on mortgage-backed securities	498,000	(5,491,000)	(24,522,000)	(5,135,000)
Unrealized gains (losses) on mortgage-backed securities	1,168,000	(5,292,000)	38,440,000	39,255,000
(Losses) gains on derivative instruments	4,079,000	(8,648,000)	(87,630,000)	(61,968,000)
Net portfolio income	30,925,000	(5,845,000)	(6,605,000)	13,303,000
Expenses
Management Fee Expense	1,252,000	1,440,000	3,897,000	4,051,000
Allocated Overhead	377,000	351,000	1,072,000	1,001,000
Compensation and related benefits	158,000	173,000	(117,000)	(53,000)
Directors fees and liability insurance	242,000	260,000	750,000	750,000
Audit, legal and other professional fees	240,000	221,000	841,000	886,000
Direct REIT operating expenses	406,000	130,000	852,000	790,000
Other administrative	174,000	57,000	451,000	225,000
Total expenses	2,849,000	2,632,000	7,746,000	7,650,000
Net income (loss)	$ 28,076,000	$ (8,477,000)	$ (14,351,000)	$ 5,653,000
Basic and diluted net income (loss) per share
Basic	$ 0.42	$ (0.14)	$ (0.22)	$ 0.10
Diluted	$ 0.42	$ (0.14)	$ (0.22)	$ 0.1
Weighted Average Shares Outstanding
Weighted Average Shares - Basic and Diluted	67,301,901	60,418,985	66,014,379	54,037,721
Dividends Per Share [Abstract]
Dividends Declared Per Common Share	$ 0.190	$ 0.240	$ 0.595	$ 0.720