Note 7 - Intellectual Property (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

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

	March 31, 2023
	(in thousands)
	Gross Carrying Amount		Accumulated Amortization			Foreign Currency Translation Impact			Net Carrying Amount
Developed technology	$	68,838	$	(66,646	)	$	(853	)	$	1,339
Technology and patents purchased		400		(248	)		15			167
Total intellectual property	$	69,238	$	(66,894	)	$	(838	)	$	1,506

	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