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Note 12 - Segment and Geographic Information - Net Sales by Geographic Location (Details) - USD ($)	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Net sales by segment	$ 39,569,123	$ 32,933,565
Inside the USA to Unaffiliated Customers [Member]
Net sales by segment	21,787,694	20,304,480
Joint Ventures in Which the Company is a Shareholder Directly and Indirectly Outside the USA [Member]
Net sales by segment	3,222,478	2,721,905
Unaffiliated Customers Outside the USA [Member]
Net sales by segment	$ 14,558,951	$ 9,907,180

X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

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- Details

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- Details

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