Note 13 - Loss Per Share - Weighted Average Number of Shares Used in the Calculation of the Basic and Diluted Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jan. 31, 2026	Oct. 31, 2025	Jan. 31, 2025	Oct. 31, 2024	Jan. 31, 2026	Jan. 31, 2025
Net loss for the period	$ (13,937)	$ (10,341)	$ (10,234)	$ (20,158)	$ (24,278)	$ (30,392)
Basic Weighted Average Number of Shares (in shares)	484,086,707		423,199,789		476,173,043	417,669,394
Dilutive Effect of Stock Awards and Warrants (in shares)	0		0		0	0
Diluted Weighted Average Number of Shares (in shares)	484,086,707		423,199,789		476,173,043	417,669,394
Net Loss Per Share – Basic (in dollars per share)	$ (0.03)		$ (0.02)		$ (0.05)	$ (0.07)
Net Loss Per Share – Diluted (in dollars per share)	$ (0.03)		$ (0.02)		$ (0.05)	$ (0.07)