Note 6 - Intangible Assets, Net (Tables)

3 Months Ended

Mar. 31, 2022

Notes Tables

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

	March 31,			December 31,
	2022			2021
Amortizable intangible assets:
Patents	$	482		$	416
Trademarks		137			134
Purchased software		1,212			1,212
Other		50			50
		1,881			1,812
Accumulated amortization		(244	)		(174	)
Total amortizable		1,637			1,638
Indefinite life assets (non-amortizable)		344			344
Total intangible assets, net	$	1,981		$	1,982

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

2022 (9 months)	$	210
2023		275
2024		276
2025		271
2026		183
Thereafter		422
Total estimated amortization expense	$	1,637