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				6 Months Ended
	Jan. 31, 2024	Oct. 31, 2023	Jan. 31, 2023	Oct. 31, 2022	Jan. 31, 2024	Jan. 31, 2023
Net Income for the Period	$ 2,250	$ 3,321	$ 10,892	$ (3,756)	$ 5,571	$ 7,136
Basic Weighted Average Number of Shares (in shares)	394,024,127		369,608,851		388,202,403	353,199,789
Dilutive Effect of Stock Awards and Warrants (in shares)	9,155,552		8,216,694		9,155,553	8,216,694
Diluted Weighted Average Number of Shares (in shares)	403,179,679		377,825,545		397,357,956	361,416,483
Net Income Per Share - Basic (in dollars per share)	$ 0.01		$ 0.03		$ 0.01	$ 0.02
Net Income Per Share - Diluted (in dollars per share)	$ 0.01		$ 0.03		$ 0.01	$ 0.02