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Note 11 - Geographic And Segment Information (Tables)

3 Months Ended

Nov. 30, 2012

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

		Three Months Ended
		November 30, 2012				November 30, 2011
Inside the U.S.A. to unaffiliated customers			71.2	%			68.1	%
Outside the U.S.A. to:
Joint ventures in which the Company is a shareholder directly and indirectly			15.3				15.7
Unaffiliated customers			13.5				16.2
			100.0	%			100.0	%

Reconciliation of Revenue from Segments to Consolidated [Table Text Block]

		Three Months Ended
		November 30, 2012				November 30, 2011
ZERUST® sales		$	4,795,283			$	4,452,646
Natur-Tec® sales			496,464				379,468
Total net sales		$	5,291,747			$	4,832,114

Reconciliation of Cost of Good Sold from Segments to Consolidated [Table Text Block]

		November 30, 2012				% of Product Sales*				November 30, 2011				% of Product Sales*
Direct cost of goods sold
ZERUST®		$	2,644,295				55.1	%		$	2,457,799				55.2	%
Natur-Tec®			439,673				88.6	%			296,561				78.2	%
Indirect cost of goods sold			607,004			NA					455,116			NA
Total net cost of goods sold		$	3,690,972							$	3,209,476

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

		At November 30, 2012
		Brazil				North America				Total
Total assets		$	1,525,725			$	45,619,817			$	47,105,308

		At August 31, 2012
		Brazil				North America				Total
Total assets		$	1,744,693			$	40,132,934			$	41,877,627

Schedule of Segment Reporting Information, by Segment [Table Text Block]

		Three Months Ended November 30, 2012
		Brazil				North America				Total
Net sales		$	551,814			$	4,739,933			$	5,291,747
Operating income		$	(23,148	)		$	896,812			$	873,664

		Three Months Ended November 30, 2011
		Brazil				North America				Total
Net sales		$	604,920			$	4,227,194			$	4,832,114
Operating income		$	(155,174	)		$	1,187,676			$	1,032,502

Fees For Services Provided to Joint Ventures [Member]

Reconciliation of Revenue from Segments to Consolidated [Table Text Block]

		Three Months Ended November 30,
		2012				% of Total Fees for Services Provided to Joint Ventures				2011				% of Total Fees for Services Provided to Joint Ventures
China*		$	493,312				26.7	%		$	—				0.0	%
Germany			242,700				13.1	%			249,447				17.3	%
Japan			201,981				10.9	%			288,539				20.0	%
Thailand*			153,687				8.3	%			—				0.0	%
Korea**			138,742				7.5	%			76,465				5.3	%
France			128,502				7.0	%			141,639				9.8	%
Poland			111,472				6.0	%			97,828				6.8	%
Finland			87,851				4.8	%			132,496				9.2	%
Sweden			86,992				4.7	%			156,657				10.8	%
United Kingdom			67,058				3.6	%			79,499				5.5	%
India			—				0.0	%			136,155				9.4	%
Other			133,980				7.4	%			86,527				6.0	%
		$	1,846,277				100.0	%		$	1,445,252				100.0	%

Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries.

+ References+ Details

Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries.

+ References+ Details

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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