Note 8 - Fortress Preferred Equity Investment - Summary of preferred equity investment activities (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Conversion of Stock [Line Items]
Beginning balance	$ 0
Ending balance	73,697
Fortress Preferred Equity Investment [Member]
Conversion of Stock [Line Items]
Beginning balance	0
Investment in preferred equity	80,000
Preferred equity return	1,392
Ending balance	73,697
Fortress Preferred Equity Investment [Member] | Embedded Derivatives [Member]
Conversion of Stock [Line Items]
Preferred equity investment activity changes	(417)
Fortress Preferred Equity Investment [Member] | Discount on Preferred Equity [Member]
Conversion of Stock [Line Items]
Preferred equity investment activity changes	(1,689)
Fortress Preferred Equity Investment [Member] | Financing Costs [Member]
Conversion of Stock [Line Items]
Preferred equity investment activity changes	$ (5,589)