Note 8 - Commitments and Contingencies (Details Textual) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2022
Standard Product Warranty Accrual, Increase (Decrease) for Preexisting Warranties	$ 1.0		$ 5.2
Other Commitment, Total	$ 220.0		$ 220.0
Minimum [Member]
Warranty Term (Year)		1 year
Maximum [Member]
Warranty Term (Year)		2 years

Amount of increase (decrease) in the standard product warranty accrual from changes in estimates attributable to preexisting product warranties. Excludes extended product warranties.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph ((c)(4))
-URI https://asc.fasb.org/extlink&oid=126907703&loc=d3e12565-110249

Name:	us-gaap_StandardProductWarrantyAccrualPreexistingIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration