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Note 1 - Nature of Business and Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Aug. 31, 2014	Aug. 31, 2013
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]
Number of Countries in which Entity Operates	60
Number of Joint Venture Arrangements	20
Deferred Revenue, Current (in Dollars)	$ 288,000	$ 288,000
Allowance for Doubtful Accounts Receivable (in Dollars)	20,000	40,000
Reimbursements Related To Certain Research And Development Contracts (in Dollars)	45,788	274,728
Building and Building Improvements [Member] | Maximum [Member]
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life	30 years
Building and Building Improvements [Member] | Minimum [Member]
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Machinery and Equipment [Member] | Maximum [Member]
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life	10 years
Machinery and Equipment [Member] | Minimum [Member]
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Joint Venture Fees [Member]
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]
Deferred Revenue, Current (in Dollars)	$ 288,000	$ 288,000
Zerust Brazil [Member]
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	15.00%
Equity Method Investment, Ownership Percentage	85.00%
NTI ASEAN [Member]
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	40.00%
Equity Method Investment, Ownership Percentage	60.00%
Natur-Tec [Member]
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	10.00%
Equity Method Investment, Ownership Percentage	90.00%
Maximum [Member]
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	50.00%

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- Definition

Number of active joint venture arrangements the company participates, either directly or indirectly.

+ References

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Reimbursements related to certain research and development contracts.

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No definition available.

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- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 4

-Article 5



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5074-111524



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.4)

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The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 605

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 13.A.4(a).Q1)

-URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780



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-Name Accounting Standards Codification

-Topic 210

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-Section 45

-Paragraph 8

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 13

-Section A

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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The number of countries in which the entity operates as of balance sheet date.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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