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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

X

- Definition

The gross amount of intangible assets including goodwill.

+ References

No definition available.

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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

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
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-Publisher FASB
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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

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-Topic 350
-SubTopic 30
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- Definition

Amount before accumulated amortization of intangible assets, excluding goodwill.

+ References

No definition available.

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