Note 12 - Segment and Geographic Information - Cost of Goods Sold by Segment (Details) - USD ($)	3 Months Ended		9 Months Ended
	May 31, 2026	May 31, 2025	May 31, 2026	May 31, 2025
Cost of goods sold	$ 16,072,498	$ 13,249,123	$ 45,136,589	$ 38,701,045
Indirect Cost of Goods Sold [Member]
Cost of goods sold	1,054,561	572,626	2,581,899	2,322,628
ZERUST [Member] \| Direct Cost of Goods Sold [Member]
Cost of goods sold	$ 10,833,295	$ 9,119,330	$ 30,628,650	$ 25,894,213
ZERUST®	59.70%	58.00%	58.80%	57.10%
NaturTec [Member] \| Direct Cost of Goods Sold [Member]
Cost of goods sold	$ 4,184,642	$ 3,557,167	$ 11,926,040	$ 10,484,204
ZERUST®	68.90%	61.50%	68.40%	63.10%

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.