Note 9 - Intangible Assets, Net (Tables)

6 Months Ended

Jun. 30, 2025

Notes Tables

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

	June 30, 2025
	Gross		Accumulated			Intangible
	Amount		amortization			assets, net
Patents	$	10,113	$	(6,632	)	$	3,481
Trademarks		228		(70	)		158
Total intangible assets	$	10,341	$	(6,702	)	$	3,639

	December 31, 2024
	Gross		Accumulated			Intangible
	Amount		amortization			assets, net
Patents	$	9,873	$	(6,355	)	$	3,518
Trademarks		218		(56	)		162
Total intangible assets	$	10,091	$	(6,411	)	$	3,680

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

2025 (remaining 6 months)	$	220
2026		435
2027		435
2028		435
2029		435
2030 and thereafter		1,679
	$	3,639