Note 22 - Income Taxes - Components of Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Income (Loss) before income taxes	$ (2,437)	$ 5,247	$ (14,817)
Corporate tax rate	23.89%	23.95%	21.83%
Expected tax expense (recovery)	$ (582)	$ 1,257	$ (3,235)
Foreign tax rate differences	(83)	158	77
Permanent differences	1,486	(326)	(217)
Prior year true-up	(464)	6	(270)
Change in state tax rate	(182)	(460)	(406)
Foreign exchange rate differences	1,687	(4)	(56)
Other	1,138	188	163
Change in valuation allowance	(2,130)	(824)	3,940
Deferred tax expense (recovery)	$ 870	$ (5)	$ (4)