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Note 11 - Segment and Geographic Information - Net Sales by Segment (Details) - USD ($)	3 Months Ended		9 Months Ended
	May 31, 2021	May 31, 2020	May 31, 2021	May 31, 2020
Net sales	$ 15,418,524	$ 9,744,823	$ 40,980,518	$ 37,610,006
ZERUST [Member]
Net sales	12,378,215	7,356,781	32,882,882	26,322,515
NaturTec [Member]
Net sales	$ 3,040,309	$ 2,388,042	$ 8,097,636	$ 11,287,491

X

- Definition

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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