Note 14 - Income (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
	Oct. 31, 2024	Oct. 31, 2023
Net income (loss) for the period	$ (20,158)	$ 3,321
Basic Weighted Average Number of Shares (in shares)	412,138,998	382,380,679
Dilutive Effect of Stock Awards and Warrants (in shares)	0	9,042,499
Diluted Weighted Average Number of Shares (in shares)	412,138,998	391,423,178
Net Income (Loss) Per Share – Basic (in dollars per share)	$ (0.05)	$ 0.01
Net Income (Loss) Per Share – Diluted (in dollars per share)	$ (0.05)	$ 0.01