Note 9 - Intangible Assets, Net (Tables)

6 Months Ended

Jun. 30, 2024

Notes Tables

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

	June 30, 2024
	Gross		Accumulated			Intangible
	Amount		amortization			assets, net
Patents	$	9,641	$	(6,166	)	$	3,475
Trademarks		183		(42	)		141
Total intangible assets	$	9,824	$	(6,208	)	$	3,616

	December 31, 2023
	Gross		Accumulated			Intangible
	Amount		amortization			assets, net
Patents	$	9,502	$	(5,981	)	$	3,521
Trademarks		138		(31	)		107
Total intangible assets	$	9,640	$	(6,012	)	$	3,628

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

2024(remaining 6 months)	$	229
2025		459
2026		459
2027		459
2028		459
2029 and thereafter		1,551
	$	3,616