Note 7 - Intellectual Property (Tables)

3 Months Ended

Mar. 31, 2022

Notes Tables

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

	March 31, 2022
	(in thousands)
	Gross Carrying Amount		Accumulated Amortization			Foreign Currency Translation Impact			Net Carrying Amount
Developed technology	$	68,838	$	(60,086	)	$	(1,954	)	$	6,798
Technology and patents purchased		400		(205	)		16			211
Total intellectual property	$	69,238	$	(60,291	)	$	(1,938	)	$	7,009

	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