Note 14 - Related Party Transactions (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Bimini Advisors LLC [Member]
Automatic Renewal Period Of Management Agreement (Year)	1 year
Management Fee and Overhead Expense	$ 13.6	$ 13.0	$ 9.8
Bimini Capital Management Inc [Member]
Entity Shares Owned (in shares)	569,071
Entity Ownership Percentage	1.10%