Note 6 - Pledged Assets (Tables)

9 Months Ended

Sep. 30, 2026

Notes Tables

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

(in thousands)
		*September 30, 2026*												*December 31, 2025*
		*Repurchase*				*Derivative*								*Repurchase*				*Derivative*
Assets Pledged to Counterparties		*Agreements*				*Agreements*				*Total*				*Agreements*				*Agreements*				*Total*
PT RMBS - fair value		$	10,602,397			$	-			$	10,602,397			$	10,489,655			$	-			$	10,489,655
Structured RMBS - fair value			11,383				-				11,383				13,088				-				13,088
U.S. Treasury securities			-				207,861				207,861				-				135,133				135,133
Accrued interest on pledged securities			51,085				1,740				52,825				48,537				36				48,573
Restricted cash			130,044				21,501				151,545				51,171				7,525				58,696
Total		$	10,794,909			$	231,102			$	11,026,011			$	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*
September 30, 2026
Cash		$	1,428			$	-			$	11,729			$	13,157
U.S. Treasury securities - fair value			-				435,939				-				435,939
Total		$	1,428			$	435,939			$	11,729			$	449,096
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