Note 9 - Derivative Financial Instruments - Statement of Operations Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Derivative financial instruments	$ 8,340	$ 388
TBA and Other Forward MBS [Member]
Derivative financial instruments	1,354	388
Equity Derivatives [Member]
Derivative financial instruments	(564)	0
Share Forward Liabilities [Member]
Derivative financial instruments	$ 7,550	$ 0