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Note 7 - Intangible Assets, Net - Carrying Value of Intangible Assets (Details) - USD ($) $ in Thousands		12 Months Ended
	Aug. 19, 2021	Dec. 31, 2021	Dec. 31, 2020
Cost		$ 30,443	$ 29,243
Amortization of intangible assets		(23,938)	(17,277)
Net Book Value		6,505	11,966
Total intangible assets, net		6,545	12,006
Intangible Assets Not Subject to Amortization [Member]
Intangible assets not subject to amortization		$ 40	$ 40
Developed Technology Rights [Member]
Weighted Average Life (Year)	5 years	4 years 6 months	4 years 4 months 24 days
Weighted Average Remaining Life (Year)		10 months 24 days	1 year 9 months 18 days
Cost		$ 28,556	$ 27,356
Amortization of intangible assets		(22,463)	(16,152)
Net Book Value		$ 6,093	$ 11,204
Patents [Member]
Weighted Average Life (Year)		14 years	14 years
Weighted Average Remaining Life (Year)		2 years 8 months 12 days	3 years 8 months 12 days
Cost		$ 1,387	$ 1,387
Amortization of intangible assets		(1,121)	(1,021)
Net Book Value		$ 266	$ 366
Noncompete Agreements [Member]
Weighted Average Life (Year)		2 years	2 years
Weighted Average Remaining Life (Year)		7 months 6 days	1 year 7 months 6 days
Cost		$ 500	$ 500
Amortization of intangible assets		(354)	(104)
Net Book Value		$ 146	$ 396

X

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ 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)
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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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- Definition

Amount after 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 926
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959

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Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
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- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

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