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		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue	$ 36,479	$ 30,482	$ 75,290	$ 70,650
Gross profit	22,653	17,873	47,573	46,101
Net loss	$ (34,325)	$ (28,681)	$ (65,187)	$ (51,702)