Note 8 - Intellectual Property, Net (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

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

	2023			2022
Intellectual property	$	1,794		$	1,794
Accumulated amortization		(1,513	)		(1,333	)
Intellectual property, net	$	281		$	461

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

2024	$	135
2025		70
2026		51
2027		25
Total estimated future amortization	$	281