Note 6 - Acquired Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Gross value	$ 49,945
Accumulated Currency Translation Adjustment	(3,218)
Accumulated Amortization	(42,430)
Net book value	$ 4,297	$ 4,626
Weighted average useful life (Year)	13 years
Gross value (Year)	13 years
Developed Technology Rights [Member]
Gross value	$ 33,061
Accumulated Currency Translation Adjustment	(1,608)
Accumulated Amortization	(29,653)
Net book value	$ 1,800	1,973
Weighted average useful life (Year)	15 years
Gross value (Year)	15 years
In Process Research and Development [Member]
Gross value	$ 2,656
Accumulated Currency Translation Adjustment	(1,006)
Net book value	1,650	1,650
Customer Relationships [Member]
Gross value	3,887
Accumulated Currency Translation Adjustment	0
Accumulated Amortization	(3,542)
Net book value	$ 345	360
Weighted average useful life (Year)	10 years
Gross value (Year)	10 years
Distribution Rights [Member]
Gross value	$ 4,700
Accumulated Currency Translation Adjustment	(415)
Accumulated Amortization	(4,285)
Net book value	$ 0	0
Weighted average useful life (Year)	5 years
Gross value (Year)	5 years
Patents [Member]
Gross value	$ 1,000
Accumulated Currency Translation Adjustment	(189)
Accumulated Amortization	(740)
Net book value	$ 71	83
Weighted average useful life (Year)	16 years
Gross value (Year)	16 years
Trade Names [Member]
Gross value	$ 4,641
Accumulated Currency Translation Adjustment	0
Accumulated Amortization	(4,210)
Net book value	$ 431	$ 560
Weighted average useful life (Year)	5 years
Gross value (Year)	5 years