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Note 10 - Goodwill and Other Intangible Assets - Major Components of Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Intangible assets, cost | $ 16,826 | $ 16,944 |
Intangible assets, accumulated amortization | 13,201 | 12,527 |
Goodwill, Ending Balance | 27,243 | 27,537 | $ 27,215
Intangible assets, including goodwill, cost | 46,287 | 46,702 |
Trademarks and Trade Names [Member] |  |  |
Trade names and trademarks | 2,218 | 2,221 |
Customer Relationships [Member] |  |  |
Intangible assets, cost | 7,769 | 7,876 |
Intangible assets, accumulated amortization | 7,255 | 6,991 |
Technology and Drawings [Member] |  |  |
Intangible assets, cost | 6,750 | 6,761 |
Intangible assets, accumulated amortization | 4,305 | 4,015 |
Other Intangible Assets [Member] |  |  |
Intangible assets, cost | 2,307 | 2,307 |
Intangible assets, accumulated amortization | $ 1,641 | $ 1,521 |

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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