Note 22 - Income Taxes - Components of Income (Loss) from Operations Before Income Taxes, by Tax Jurisdiction (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2022
Income (loss) from operations before income taxes	$ (34,255)	$ (2,437)	$ 5,247
Domestic Tax Jurisdiction [Member] | Internal Revenue Service (IRS) [Member]
Income (loss) from operations before income taxes	(13,928)	5,192	6,054
Foreign Tax Jurisdiction [Member] | Canada Revenue Agency [Member]
Income (loss) from operations before income taxes	(19,468)	(6,720)	268
Foreign Tax Jurisdiction [Member] | Tax Administration of Paraguay [Member]
Income (loss) from operations before income taxes	$ (859)	$ (909)	$ (1,075)