Note 6 - Goodwill and Acquisition-related Intangible Assets, Net - Acquisition-Related Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Gross Amount	$ 7,484	$ 7,484
Accumulated Amortization	(4,482)	(2,431)
Net Amount	3,002	5,053
Know-How [Member]
Gross Amount	1,018	1,018
Accumulated Amortization	(500)	(297)
Net Amount	518	721
Developed Technology Rights [Member]
Gross Amount	6,466	6,466
Accumulated Amortization	(3,982)	(2,134)
Net Amount	$ 2,484	$ 4,332

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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