Note 11 - Warranty Reserve Liability - Warranty Reserve Liability (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Balance		$ 8,312	$ 9,398
Provision for warranties	[1]	1,891	1,419
Settlements of warranty claims	[1]	(1,308)	(1,641)
Balance		$ 8,895	$ 9,176

[1] Both the Provision for warranties and Settlements of warranty claims balances during the three months ended March 31, 2022 include reclassifications of $525,000 to reflect changes in warranty utilization on pre-existing claims