Note 10 - Warranty Reserve Liability - Warranty Reserve Liability (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Balance		$ 9,398	$ 212	$ 191
Warranty reserve acquired in the acquisition of Global Cooling		0	3,353	0
Provision for warranties	[1]	4,463	10,989	137
Settlements of warranty claims	[1]	(5,549)	(5,156)	(116)
Balance		$ 8,312	$ 9,398	$ 212

[1] Both the Provision for warranties and Settlements of warranty claims balances include reclassifications of $1.6 million and $1.1 million for the years ended December 31, 2022 and 2021, respectively, to reflect changes in warranty utilization on pre-existing claims.