Note 12 - Net Sales by Segment (Details) - USD ($)	3 Months Ended	6 Months Ended
Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016	Feb. 28, 2015
ZERUST [Member]
Net sales by segment	$ 6,385,337	$ 5,783,985	$ 12,363,019	$ 12,022,056
NaturTec [Member]
Net sales by segment	1,319,597	944,724	2,366,352	1,920,748
Net sales by segment	$ 7,704,934	$ 6,728,709	$ 14,729,371	$ 13,942,804

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.

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=26872669&loc=d3e20235-122688

Name:	us-gaap_SalesRevenueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration