Note 6 - Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Gross Value	$ 118,859		$ 28,206
Accumulated Currency Translation Adjustment	(4,879)		(4,759)
Impairment	(318)	$ (281)	(389)
Accumulated Amortization	(14,944)		(15,473)
Intangible assets, net	$ 98,718		$ 7,585
Useful life (Year)	13 years		11 years
In Process Research and Development [Member]
Gross Value	$ 5,006		$ 4,406
Accumulated Currency Translation Adjustment	(1,296)		(1,234)
Impairment
Accumulated Amortization
Intangible assets, net	3,710		3,172
Developed Technology Rights [Member]
Gross Value	93,953		17,100
Accumulated Currency Translation Adjustment	(2,986)		(2,934)
Impairment	(318)		(389)
Accumulated Amortization	(9,958)		(9,657)
Intangible assets, net	$ 80,691		$ 4,120
Useful life (Year)	15 years		15 years
Customer Relationships [Member]
Gross Value	$ 9,000
Accumulated Currency Translation Adjustment
Impairment
Accumulated Amortization	(99)
Intangible assets, net	$ 8,901
Useful life (Year)	10 years
Distribution Rights [Member]
Gross Value	$ 4,700		$ 4,700
Accumulated Currency Translation Adjustment	(415)		(415)
Impairment
Accumulated Amortization	(4,285)		(4,285)
Intangible assets, net
Useful life (Year)	5 years		5 years
Patents [Member]
Gross Value	$ 1,000		$ 1,000
Accumulated Currency Translation Adjustment	(182)		(176)
Impairment
Accumulated Amortization	(543)		(531)
Intangible assets, net	$ 275		$ 293
Useful life (Year)	16 years		16 years
Elevess Trade Name [Member]
Gross Value			$ 1,000
Accumulated Currency Translation Adjustment
Impairment
Accumulated Amortization			(1,000)
Intangible assets, net
Useful life (Year)			9 years
Trade Names [Member]
Gross Value	$ 5,200
Accumulated Currency Translation Adjustment
Impairment
Accumulated Amortization	(59)
Intangible assets, net	$ 5,141
Useful life (Year)	5 years

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- 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

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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- Definition

Amount before accumulated amortization of intangible assets, excluding goodwill.

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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 350
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-Paragraph 2
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