Note 13 - Segment and Geographic Information - Net Sales by Segment (Details) - USD ($)	12 Months Ended
Aug. 31, 2022	Aug. 31, 2021
Net sales by segment	$ 74,158,890	$ 56,493,819
ZERUST [Member]
Net sales by segment	57,459,382	45,554,434
NaturTec [Member]
Net sales by segment	$ 16,699,508	$ 10,939,385

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details