Related Party Transactions - Narrative (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Related Party Transaction [Line Items]
Management Fees And Allocated Expenses	$ 1,557,000	$ 1,388,000	$ 1,274,000	$ 1,269,000	$ 1,338,000	$ 1,321,000	$ 1,288,000	$ 1,095,000
Due to affiliates	$ 566,000				$ 465,000				$ 566,000	$ 465,000
Bimini Advisors, LLC [Member]
Related Party Transaction [Line Items]
Termination Date									2/20/2017
Automatic Renewal Period Of Management Agreement									1 year
Management Fees And Allocated Expenses									$ 5,500,000	$ 5,000,000	$ 2,400,000
Bimini Capital Management, Inc. [Member]
Related Party Transaction [Line Items]
Bimini Shares	1,395,036								1,395,036
Bimini Ownership	4.20%								4.20%