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Note 11 - Segment and Geographic Information - Net Sales by Geographic Location (Details) - USD ($)	12 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Net sales by segment	$ 47,638,691	$ 55,750,137
Inside the USA to Unaffiliated Customers [Member]
Net sales by segment	20,218,213	24,560,459
Joint Ventures in Which the Company is a Shareholder Directly and Indirectly Outside the USA [Member]
Net sales by segment	1,972,646	2,607,554
Unaffiliated Customers Outside the USA [Member]
Net sales by segment	$ 25,447,832	$ 28,582,124

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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