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Note 8 - Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016
Gross Value | $ 28,206 |
Accumulated Currency Translation Adjustment | (4,132) | $ (5,497)
Accumulated Amortization | (13,439) | (12,482)
Intangible assets, net | 10,635 | 10,227
In Process Research and Development [Member] |  |
Gross Value | 4,406 |
Accumulated Currency Translation Adjustment | (1,015) | (1,433)
Accumulated Amortization |  |
Intangible assets, net | 3,391 | 2,973
Developed Technology Rights [Member] |  |
Gross Value | 17,100 |
Accumulated Currency Translation Adjustment | (2,550) | (3,442)
Accumulated Amortization | (7,723) | (6,816)
Intangible assets, net | $ 6,827 | 6,842
Useful Life (Year) | 15 years |
Distribution Rights [Member] |  |
Gross Value | $ 4,700 |
Accumulated Currency Translation Adjustment | (415) | (415)
Accumulated Amortization | (4,285) | (4,285)
Intangible assets, net |  |
Useful Life (Year) | 5 years |
Patents [Member] |  |
Gross Value | $ 1,000 |
Accumulated Currency Translation Adjustment | (152) | (207)
Accumulated Amortization | (431) | (381)
Intangible assets, net | $ 417 | 412
Useful Life (Year) | 16 years |
Elevess Trade Name [Member] |  |
Gross Value | $ 1,000 |
Accumulated Currency Translation Adjustment |  |
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. + Details
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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/presentationRef -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 + Details
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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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