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Note 3 - Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2022
Dec. 31, 2021
Finite-Lived Intangible Assets, Gross $ 63,726 $ 64,892
Total amortizable intangible assets (39,729) (37,745)
Finite-Lived Intangible Assets, Net 23,997 27,147
Indefinite-lived intangible assets: 222 238
Total intangible assets, Net $ 24,219 27,385
Distribution Agreements/Customer Relationships [Member]    
Finite-Lived Intangible Assets, Weighted Average Useful Life (Year) [1] 7 years 4 months 24 days  
Finite-Lived Intangible Assets, Gross $ 17,182 17,689
Total amortizable intangible assets (8,965) (8,675)
Finite-Lived Intangible Assets, Net $ 8,217 9,014
Existing Technology [Member]    
Finite-Lived Intangible Assets, Weighted Average Useful Life (Year) [1] 3 years 8 months 12 days  
Finite-Lived Intangible Assets, Gross $ 38,220 38,707
Total amortizable intangible assets (25,348) (23,962)
Finite-Lived Intangible Assets, Net $ 12,872 14,745
Trade Names and Patents [Member]    
Finite-Lived Intangible Assets, Weighted Average Useful Life (Year) [1] 4 years  
Finite-Lived Intangible Assets, Gross $ 8,324 8,496
Total amortizable intangible assets (5,416) (5,108)
Finite-Lived Intangible Assets, Net $ 2,908 $ 3,388
[1] Weighted average life in years as of June 30, 2022