Note 9 - Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Mar. 31, 2016
Developed Technology Rights [Member]
Gross Value		$ 17,100
Accumulated Currency Translation Adjustment		(2,882)
Accumulated Amortization		(6,148)
Net Book Value	$ (7,959)	8,070
Net Book Value	$ 7,959	(8,070)
Useful Life	15 years
In Process Research and Development [Member]
Gross Value		4,406
Accumulated Currency Translation Adjustment		(1,193)
Net Book Value	$ (3,099)	3,213
Net Book Value	$ 3,099	(3,213)
Distribution Rights [Member]
Gross Value		4,700
Accumulated Currency Translation Adjustment		(415)
Accumulated Amortization		(4,285)
Useful Life	5 years
Patents [Member]
Gross Value		1,000
Accumulated Currency Translation Adjustment		(173)
Accumulated Amortization		(345)
Net Book Value	$ (473)	482
Net Book Value	$ 473	(482)
Useful Life	16 years
Elevess Trade Name [Member]
Gross Value		1,000
Accumulated Amortization		(906)
Net Book Value	$ (125)	94
Net Book Value	$ 125	(94)
Useful Life	9 years
Gross Value		28,206
Accumulated Currency Translation Adjustment		(4,663)
Accumulated Amortization		(11,684)
Net Book Value	$ 11,656	11,859
Net Book Value	$ (11,656)	$ (11,859)