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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, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Intangible assets, cost | $ 16,873 | $ 16,423 |
Intangible assets, accumulated amortization | 11,164 | 10,103 |
Goodwill | 27,215 | 27,234 | $ 27,551
Intangible assets, including goodwill, cost | 46,160 | 46,288 |
Trademarks and Trade Names [Member] |  |  |
Trade names and trademarks | 2,072 | 2,631 |
Customer Relationships [Member] |  |  |
Intangible assets, cost | 7,832 | 7,833 |
Intangible assets, accumulated amortization | 6,301 | 5,514 |
Technology and Drawings [Member] |  |  |
Intangible assets, cost | 6,749 | 6,752 |
Intangible assets, accumulated amortization | 3,712 | 3,417 |
Other Intangible Assets [Member] |  |  |
Intangible assets, cost | 2,292 | 1,838 |
Intangible assets, accumulated amortization | $ 1,151 | $ 1,172 |

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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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- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trade name to gain or protect exclusive use thereof for a projected indefinite period of benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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