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Note 6 - Goodwill and Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Gross Carrying Amount	$ 46,435	$ 42,160
Accumulated Amortization	(37,679)	(34,263)
Customer Relationships	8,756	7,897
Customer Relationships [Member]
Gross Carrying Amount	28,300	28,300
Accumulated Amortization	(28,103)	(26,324)
Customer Relationships	197	1,976
Intellectual Property [Member]
Gross Carrying Amount	18,135	13,860
Accumulated Amortization	(9,576)	(7,939)
Customer Relationships	$ 8,559	$ 5,921

X

- 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 before 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 928
-SubTopic 340
-Section 50
-Paragraph 1
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
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