Note 4 - CMBS Trusts (Tables)

3 Months Ended

Mar. 31, 2022

Notes Tables

Schedule of Recognized Trusts Assets and Liabilities [Table Text Block]

Trust's Assets	March 31, 2022			December 31, 2021
Mortgage loans held in variable interest entities, at fair value	$	6,716,235		$	7,192,547
Accrued interest receivable		2,063			2,212
Trust's Liabilities
Bonds payable held in variable interest entities, at fair value		(6,266,928	)		(6,726,272	)
Accrued interest payable		(1,509	)		(1,500	)

Schedule of Change in Net Assets Related to Consolidated CMBS Variable Interest Entities [Table Text Block]

	For the Three Months Ended March 31,
	2022			2021
Net interest earned	$	7,953		$	5,700
Unrealized gain (loss)		(4,537	)		15,011
Change in net assets related to consolidated CMBS variable interest entities	$	3,416		$	20,711

Impaired Financing Receivables [Table Text Block]

Geography	March 31, 2022			December 31, 2021
Texas		16.60	%		16.88	%
Florida		14.04	%		14.77	%
Arizona		10.15	%		10.37	%
California		8.75	%		8.50	%
Georgia		5.11	%		4.97	%
Washington		6.36	%		6.19	%
New Jersey		4.79	%		4.65	%
Nevada		3.61	%		3.51	%
Colorado		4.19	%		4.08	%
Connecticut		3.11	%		3.02	%
North Carolina		3.21	%		3.12	%
New York		2.14	%		2.45	%
Ohio		1.77	%		1.72	%
Virginia		1.75	%		1.70	%
Indiana		1.73	%		1.68	%
South Carolina		1.60	%		1.56	%
Maryland		1.60	%		1.55	%
Missouri		1.30	%		1.26	%
Other (20 and 20 states each at <1%)		8.19	%		8.02	%
		100.00	%		100.00	%

Collateral Property Type	March 31, 2022			December 31, 2020
Multifamily		98.38	%		98.42	%
Manufactured Housing		1.62	%		1.58	%
		100.00	%		100.00	%