Note 6 - Pledged Assets (Tables)

6 Months Ended

Jun. 30, 2026

Notes Tables

Schedule of Financial Instruments Owned and Pledged as Collateral [Table Text Block]

(in thousands)
		*June 30, 2026*												*December 31, 2025*
		*Repurchase*				*Derivative*								*Repurchase*				*Derivative*
Assets Pledged to Counterparties		*Agreements*				*Agreements*				*Total*				*Agreements*				*Agreements*				*Total*
PT RMBS - fair value		$	11,434,805			$	-			$	11,434,805			$	10,489,655			$	-			$	10,489,655
Structured RMBS - fair value			11,966				-				11,966				13,088				-				13,088
U.S. Treasury securities			-				182,862				182,862				-				135,133				135,133
Accrued interest on pledged securities			52,394				600				52,994				48,537				36				48,573
Restricted cash			111,469				19,568				131,037				51,171				7,525				58,696
Total		$	11,610,634			$	203,030			$	11,813,664			$	10,602,451			$	142,694			$	10,745,145

Schedule of Financial Instruments Pledged as Collateral From Counterparties [Table Text Block]

(in thousands)
						*Reverse*
		*Repurchase*				*Repurchase*				*Derivative*
		*Agreements*				*Agreements*				*Agreements*				*Total*
June 30, 2026
Cash		$	9,363			$	-			$	3,140			$	12,503
U.S. Treasury securities - fair value			2,345				496,036				-				498,381
Total		$	11,708			$	496,036			$	3,140			$	510,884
December 31, 2025
Cash		$	12,549			$	-			$	360			$	12,909
U.S. Treasury securities - fair value			-				128,724				-				128,724
Total		$	12,549			$	128,724			$	360			$	141,633