Note 20 - General and Administrative Expenses - General and Administrative Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Salaries and management fees	$ 5,168	$ 4,281	$ 2,417
Office, IR, communication, insurance and travel	6,801	4,501	3,765
Foreign exchange loss	71	317	95
Professional fees	2,609	1,387	952
Sub-total	14,649	10,486	7,229
Stock-based compensation	5,415	4,540	5,411
Total general and administrative expenses	$ 20,064	$ 15,026	$ 12,640