Note 6 - Intangibles, Net (Tables)

9 Months Ended

Sep. 30, 2025

Notes Tables

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

	As of September 30, 2025							As of December 31, 2024
	Gross Carrying Costs		Accumulated Amortization			Net Carrying Amount		Gross Carrying Costs		Accumulated Amortization			Net Carrying Amount
Patents & Trademarks	$	64,087		(16,565	)		47,522	$	64,087	$	(13,132	)	$	50,955

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

Year Ending December 31,
Remainder of 2025	$	1,144
2026		4,578
2027		4,578
2028		4,578
2029		4,578
Thereafter		28,066
Total	$	47,522