Note 3 - Discontinued Operations (Details Textual) - USD ($) $ in Thousands		3 Months Ended
	Mar. 16, 2022	Mar. 31, 2022	Mar. 31, 2021
Proceeds From the Sale of Discontinued Operations		$ 142,571	$ 0
Inliner [Member]
Disposal Group, Including Discontinued Operation, Consideration	$ 159,700
Proceeds From the Sale of Discontinued Operations	$ 142,600
Gain (Loss) on Sale of Discontinued Operations		$ 6,200