Note 8 - Real Estate Investment, Net - Revenue and Expenses of Property (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Interest expense	$ 8,818	$ 6,497
General and administrative expenses	1,763	1,518
Depreciation and amortization of real estate investment	944	0
Net loss from consolidated real estate owned	(213)	0
Multifamily Property [Member]
Other income	5	0
Total revenues	936	0
Interest expense	236	0
Real estate taxes and insurance	113	0
Property operating expenses	147	0
General and administrative expenses	33	0
Property management fees	27	0
Depreciation and amortization of real estate investment	944	0
Rate cap (income) expense	(351)	0
Total expenses	1,149	0
Net loss from consolidated real estate owned	(213)	0
Multifamily Property [Member] | Rental Income [Member]
Rental income	$ 931	$ 0