Note 8 - Warrants (Tables)

6 Months Ended

Jun. 30, 2025

Notes Tables

Schedule of Warrants or Right [Table Text Block]

		Number of warrants				Weighted average exercise price
Warrants outstanding, December 31, 2023			17,400,000			$	0.28
Expired			(4,900,000	)			1.00
Warrants outstanding, December 31, 2024			12,500,000				0.001
Expired			(12,500,000	)			0.001
Warrants outstanding, June 30, 2025			-			$	-