Note 3 - Revisions in Estimates (Details Textual) - USD ($) $ in Thousands	3 Months Ended								6 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Gross Profit, Total	$ 96,781	$ 115,055	$ 97,566	$ 60,092	$ 62,446	$ 119,935	$ 116,946	$ 63,318	$ 157,658	$ 272,713	$ 369,494	$ 362,645	$ 344,788
Revisions in Estimates [Member]
Gross Profit, Total											$ (80,100)	$ (70,600)	$ (143,400)