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Note 10 - Warranty Reserve Liability (Details Textual) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Standard Product Warranty Accrual, Increase (Decrease) for Preexisting Warranties | $ 1.6 | $ 1.1

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- Definition Amount of increase (decrease) in the standard product warranty accrual from changes in estimates attributable to preexisting product warranties. Excludes extended product warranties. + References 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 + Details
Name: | us-gaap_StandardProductWarrantyAccrualPreexistingIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration