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Note 4 - Goodwill and Other Intangible Assets - Components of Definite and Indefinite-lived Intangible Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Gross carrying amount | $ 114,986 | $ 114,094
Accumulated amortization | 49,197 | 41,729
Net carrying amount | 65,789 | 72,365
Trademarks [Member] |  |
Trademarks, gross | 16,953 | 16,852
Trademarks, Accumulated amortization | 40 | 40
Trademarks, Net carrying amount | 16,913 | 16,812
Patents, Licenses and Technology [Member] |  |
Gross carrying amount | 39,056 | 38,885
Accumulated amortization | 25,160 | 21,757
Net carrying amount | 13,896 | 17,128
Customer Relationships [Member] |  |
Gross carrying amount | 56,261 | 55,656
Accumulated amortization | 21,280 | 17,231
Net carrying amount | 34,981 | 38,425
Noncompete Agreements [Member] |  |
Gross carrying amount | 2,716 | 2,701
Accumulated amortization | 2,717 | 2,701
Net carrying amount | $ 1 | $ 0

X
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References No definition available. + Details
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