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Note 11 - Segment and Geographic Information - Total Net Sales by Geographic Distribution (Details) - USD ($)	3 Months Ended
	Nov. 30, 2020	Nov. 30, 2019
Net sales	$ 12,779,112	$ 14,631,400
CHINA
Net sales	4,543,978	3,861,572
BRAZIL
Net sales	713,853	891,978
INDIA
Net sales	1,200,468	2,036,210
Other Countries [Member]
Net sales	1,459,458	1,694,554
UNITED STATES
Net sales	$ 4,861,355	$ 6,147,086

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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