Note 5 - BALANCE SHEET COMPONENTS - Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2021	Dec. 31, 2020
Amortization Period (Year)	7 years
Accumulated Amortization	$ (24,413)	$ (22,715)
Net Carrying Amount	19,240
Gross Carrying Amount, Total	47,288	47,288
Net Carrying Amount, Total	22,875	24,573
In Process Research and Development [Member]
In-process R&D	3,635	3,635
Customer Relationships [Member]
Gross Carrying Amount	9,407	9,407
Accumulated Amortization	(5,719)	(5,398)
Net Carrying Amount	$ 3,688	4,009
Customer Relationships [Member] \| Minimum [Member]
Amortization Period (Year)	1 year
Customer Relationships [Member] \| Maximum [Member]
Amortization Period (Year)	10 years
Developed Technology Rights [Member]
Gross Carrying Amount	$ 30,000	30,000
Accumulated Amortization	(16,150)	(14,987)
Net Carrying Amount	$ 13,850	15,013
Developed Technology Rights [Member] \| Minimum [Member]
Amortization Period (Year)	4 years
Developed Technology Rights [Member] \| Maximum [Member]
Amortization Period (Year)	9 years
Trademarks and Trade Names [Member]
Gross Carrying Amount	$ 1,598	1,598
Accumulated Amortization	(759)	(706)
Net Carrying Amount	$ 839	892
Trademarks and Trade Names [Member] \| Minimum [Member]
Amortization Period (Year)	2 years
Trademarks and Trade Names [Member] \| Maximum [Member]
Amortization Period (Year)	10 years
Patents [Member]
Gross Carrying Amount	$ 1,800	1,800
Accumulated Amortization	(1,620)	(1,600)
Net Carrying Amount	$ 180	200
Patents [Member] \| Minimum [Member]
Amortization Period (Year)	7 years
Patents [Member] \| Maximum [Member]
Amortization Period (Year)	10 years
Noncompete Agreements [Member]
Amortization Period (Year)	3 years
Gross Carrying Amount	$ 848	848
Accumulated Amortization	(165)	(24)
Net Carrying Amount	$ 683	$ 824

The gross amount of intangible assets.

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
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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
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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
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-SubTopic 340
-Section 50
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

+ References

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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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