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Note 8 - Acquired Intangible Assets, Net - Intangible Assets (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2016
Gross Value |  | $ 28,206,000
Accumulated Currency Translation Adjustment |  | (5,497,000)
Accumulated Amortization |  | (12,482,000)
Intangible assets, net | $ 11,656,000 | 10,227,000
Developed Technology Rights [Member] |  |
Gross Value |  | 17,100,000
Accumulated Currency Translation Adjustment |  | (3,442,000)
Accumulated Amortization |  | (6,816,000)
Intangible assets, net | $ 7,959 | 6,842,000
Useful Life (Year) | 15 years |
In Process Research and Development [Member] |  |
Gross Value |  | 4,406,000
Accumulated Currency Translation Adjustment |  | (1,433,000)
Intangible assets, net | $ 3,099,000 | 2,973,000
Distribution Rights [Member] |  |
Gross Value |  | 4,700,000
Accumulated Currency Translation Adjustment |  | (415,000)
Accumulated Amortization |  | (4,285,000)
Intangible assets, net |  |
Useful Life (Year) | 5 years |
Patents [Member] |  |
Gross Value |  | 1,000,000
Accumulated Currency Translation Adjustment |  | (207,000)
Accumulated Amortization |  | (381,000)
Intangible assets, net | $ 473,000 | 412,000
Useful Life (Year) | 16 years |
Elevess Trade Name [Member] |  |
Gross Value |  | 1,000,000
Accumulated Amortization |  | (1,000,000)
Intangible assets, net | $ 125,000 |
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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