Note 9 - Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Gross Value	$ 28,206
Accumulated Currency Translation Adjustment	(4,971)		$ (4,576)
Impairment	(303)
Accumulated Amortization	(15,252)		(14,439)
Intangible assets, net	7,680		9,191
In Process Research and Development [Member]
Gross Value	4,406
Accumulated Currency Translation Adjustment	(1,316)		(1,168)
Impairment
Accumulated Amortization
Intangible assets, net	3,090		3,238
Developed Technology Rights [Member]
Gross Value	17,100
Accumulated Currency Translation Adjustment	(3,056)		(2,824)
Impairment	(303)
Accumulated Amortization	(9,448)		(8,672)
Intangible assets, net	$ 4,293		5,604
Useful life (Year)	15 years
Distribution Rights [Member]
Gross Value	$ 4,700
Accumulated Currency Translation Adjustment	(415)		(415)
Impairment
Accumulated Amortization	(4,285)		(4,285)
Intangible assets, net
Useful life (Year)	5 years
Patents [Member]
Gross Value	$ 1,000
Accumulated Currency Translation Adjustment	(184)		(169)
Impairment
Accumulated Amortization	(519)		(482)
Intangible assets, net	$ 297		349
Useful life (Year)	16 years
Elevess Trade Name [Member]
Gross Value	$ 1,000
Accumulated Currency Translation Adjustment
Impairment
Accumulated Amortization	(1,000)		(1,000)
Intangible assets, net
Useful life (Year)	9 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)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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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
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275

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- Definition

Amount before accumulated amortization of intangible assets, excluding goodwill.

+ 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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph ((a)(1),(b))
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-Topic 350
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-Section 45
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-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

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