Note 10 - Goodwill, In-process Research and Development and Intellectual Property - In-process Research and Development and Intellectual Property (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets, Net		$ 22,267
Impairment		0	$ 0	$ 7,912
Finite-Lived Intangible Assets, Net		9,892	22,267
Finite-Lived Intangible Assets, Gross		69,238	69,238
Finite-Lived Intangible Assets, Accumulated Amortization		(59,111)	(51,902)
Finite-Lived Intangible Assets, Foreign Currency Translation Impact		(235)	4,931
Intellectual property, net		9,892	22,267
In Process Research and Development [Member]
Finite-Lived Intangible Assets, Net		0	2,470	10,747
Impairment	$ 7,900		0	(7,912)
Foreign currency translation impact			(45)	(365)
Transfer of in-process research and development to intellectual property			(2,425)
Finite-Lived Intangible Assets, Net			0	2,470
Intellectual property, net			0	$ 2,470
Developed Technology Rights [Member]
Finite-Lived Intangible Assets, Net		21,976
Finite-Lived Intangible Assets, Net		9,664	21,976
Finite-Lived Intangible Assets, Gross		68,838	68,838
Finite-Lived Intangible Assets, Accumulated Amortization		(58,912)	(51,734)
Finite-Lived Intangible Assets, Foreign Currency Translation Impact		(262)	4,872
Intellectual property, net		9,664	21,976
Technology-Based Intangible Assets [Member]
Finite-Lived Intangible Assets, Net		291
Finite-Lived Intangible Assets, Net		228	291
Finite-Lived Intangible Assets, Gross		400	400
Finite-Lived Intangible Assets, Accumulated Amortization		(199)	(168)
Finite-Lived Intangible Assets, Foreign Currency Translation Impact		27	59
Intellectual property, net		$ 228	$ 291