Note 8 - Convertible Debenture and Warrant (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

Schedule of Warrant Valuation Assumptions [Table Text Block]

	January 19, 2024			March 6, 2024			March 31, 2024			June 30, 2024
Expected volatility		112.98	%		90.90	%		87.36	%		88.06	%
Expected dividends		0.00	%		0.00	%		0.00	%		0.00	%
Expected term (years)		4.08			3.92			3.90			3.63
Risk-free rate		3.75	%		4.12	%		4.21	%		4.33	%