Note 9 - Fortress Preferred Equity Investment - (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Nov. 22, 2022	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Conversion of Stock [Line Items]
Capitalized Preferred Return		$ (1,860)	$ (2,404)
Combined balance of cash held in bank accounts		$ 14,631	8,496	$ 9,779
Common stock, shares par value		$ 0.01		$ 0.01
Derivative fair value adjustment		$ 889	(179)
Fortress [Member]
Conversion of Stock [Line Items]
Annual return percentage on initial capital contribution	12.00%
Cumulative annual return percentage, paid current	5.00%
Initial capital contribution annual return percetage deferred	7.00%
Initial increase in interest rate percentage of capitalized preferred return	4.75%
Initial increase in interest rate percentage of capitalized preferred return each year	1.00%
Capitalized Preferred Return		13,200
Current Preferred Return		1,200	1,000
Combined balance of cash held in bank accounts		8,200
Fortress [Member] | Additional Paid-In Capital [Member]
Conversion of Stock [Line Items]
Capitalized Preferred Return		1,800	2,400
Fortress Preferred Equity Investment [Member]
Conversion of Stock [Line Items]
Derivative fair value adjustment		500	$ 400
Derivative liability		$ 200		$ 700