Note 9 - Fortress Preferred Equity Investment - (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
	Nov. 22, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Conversion of Stock [Line Items]
Capitalized Preferred Return				$ (7,514)	$ 0
Combined balance of cash held in bank accounts		$ 13,931	$ 1,559	$ 13,931	1,559	$ 12,356
Common stock, shares par value		$ 0.01		$ 0.01		$ 0.01
Derivative fair value adjustment		$ (33)	$ 1,249	$ (18)	$ 3,819
Fortress [Member]
Conversion of Stock [Line Items]
Preferred Investor Investment Commitment Amount	$ 80,000
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				8,600
Combined balance of cash held in bank accounts		8,700		8,700
Fortress [Member] | Preferred Investor [Member]
Conversion of Stock [Line Items]
Current Preferred Return		1,100		3,200
Fortress [Member] | Preferred Interest After 22 November 2027 [Member]
Conversion of Stock [Line Items]
Increase in preferred return each year	3.00%
Fortress [Member] | November 22, 2027 [Member]
Conversion of Stock [Line Items]
Interest Percentage of Preferred Return	19.00%
Fortress [Member] | No QPO [Member]
Conversion of Stock [Line Items]
Additional interest on the applicable preferred rate after November 22, 2027	4.00%
Fortress [Member] | Additional Paid-In Capital [Member]
Conversion of Stock [Line Items]
Capitalized Preferred Return		2,600		7,500
Fortress Preferred Equity Investment [Member]
Conversion of Stock [Line Items]
Derivative fair value adjustment		(300)		100
Derivative liability		$ 1,300		$ 1,300		$ 1,200