Note 9 - Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Intangible assets, net	$ 10,626	$ 10,227
Gross Value	28,206
Accumulated Currency Translation Adjustment	(4,640)
Accumulated Amortization	(12,940)
In Process Research and Development [Member]
Intangible assets, net	3,232	2,973
Gross Value	4,406
Accumulated Currency Translation Adjustment	(1,174)
Developed Technology Rights [Member]
Intangible assets, net	6,970	6,842
Gross Value	$ 17,100
Useful Life (Year)	15 years
Accumulated Currency Translation Adjustment	$ (2,879)
Accumulated Amortization	(7,251)
Distribution Rights [Member]
Intangible assets, net
Gross Value	$ 4,700
Useful Life (Year)	5 years
Accumulated Currency Translation Adjustment	$ (415)
Accumulated Amortization	(4,285)
Patents [Member]
Intangible assets, net	424	412
Gross Value	$ 1,000
Useful Life (Year)	16 years
Accumulated Currency Translation Adjustment	$ (172)
Accumulated Amortization	(404)
Elevess Trade Name [Member]
Intangible assets, net
Gross Value	$ 1,000
Useful Life (Year)	9 years
Accumulated Currency Translation Adjustment
Accumulated Amortization	$ (1,000)