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Note 11 - Segment and Geographic Information - Net Sales by Geographic Location (Details) - USD ($)	3 Months Ended
	Nov. 30, 2020	Nov. 30, 2019
Net sales	$ 12,779,112	$ 14,631,400
Inside the USA to Unaffiliated Customers [Member]
Net sales	4,861,355	6,147,086
Joint Ventures in Which the Company is a Shareholder Directly and Indirectly Outside the USA [Member]
Net sales	580,304	585,616
Unaffiliated Customers Outside the USA [Member]
Net sales	$ 7,337,453	$ 7,898,698

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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