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, 2023	Oct. 31, 2022
Net Income (loss) for the period	$ 3,321	$ (3,756)
Basic Weighted Average Number of Shares (in shares)	382,380,679	336,790,726
Dilutive Effect of Stock Awards and Warrants (in shares)	9,042,499	0
Diluted Weighted Average Number of Shares (in shares)	391,423,178	336,790,726
Net Income (Loss) Per Share - Basic (in dollars per share)	$ 0.01	$ (0.01)
Net Income (Loss) Per Share - Diluted (in dollars per share)	$ 0.01	$ (0.01)