Note 2 - Ownership Interests and Advances - Schedule of Results of Operations (Details) - Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue	$ 18,713	$ 34,170	$ 89,110	$ 109,460
Gross profit	13,525	19,741	62,130	67,314
Net loss	$ (14,643)	$ (41,071)	$ (63,971)	$ (106,258)