Note 9 - Intellectual Property (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	December 31, 2022
	(in thousands)
	Gross Carrying Amount		Accumulated Amortization			Foreign Currency Translation Impact			Net Carrying Amount
Developed technology	$	68,838	$	(66,562	)	$	(874	)	$	1,402
Technology and patents purchased		400		(239	)		13			174
Total intellectual property	$	69,238	$	(66,801	)	$	(861	)	$	1,576

	December 31, 2021
	(in thousands)
	Gross Carrying Amount		Accumulated Amortization			Foreign Currency Translation Impact			Net Carrying Amount
Developed technology	$	68,838	$	(58,912	)	$	(262	)	$	9,664
Technology and patents purchased		400		(199	)		27			228
Total intellectual property	$	69,238	$	(59,111	)	$	(235	)	$	9,892

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

	Year Ending December 31, 2022
2023	$	377
2024		377
2025		377
2026		377
2027		68
Total	$	1,576