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Note 11 - Geographic And Segment Information (Tables)

6 Months Ended

Feb. 28, 2013

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

		Three Months Ended								Six Months Ended
		February 28, 2013				February 29, 2012				February 28, 2013				February 29, 2012
Inside the U.S.A. to unaffiliated customers			65.6	%			58.9	%			68.4	%			63.3	%
Outside the U.S.A to:
Joint ventures in which the Company is a shareholder directly and indirectly			18.2	%			11.9	%			16.8	%			13.7	%
Unaffiliated customers			16.2	%			29.2	%			14.8	%			23.0	%
			100.0	%			100.0	%			100.0	%			100.0	%

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

		Three Months Ended								Six Months Ended
		February 28, 2013				February 29, 2012				February 28, 2013				February 29, 2012
ZERUST® sales		$	4,710,412			$	4,570,779			$	9,505,695			$	9,023,425
Natur-Tec™ sales			535,938				403,549				1,032,402				783,017
		$	5,246,350			$	4,974,328			$	10,538,097			$	9,806,442

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

		Three Months Ended																Six Months Ended
		February 28, 2013				% of Product Sales*				February 29, 2012				% of Product Sales*				February 28, 2013				% of Product Sales*				February 29, 2012				% of Product Sales*
Direct cost of goods sold
ZERUST®		$	2,623,070				55.7	%		$	2,569,588				56.2	%		$	5,267,365				55.4	%		$	5,027,387				55.7	%
Natur-Tec®			453,147				84.6	%			361,704				89.6	%			892,820				86.5	%			658,265				84.1	%
Indirect cost of goods sold			557,696				—				548,790				—				1,164,700				—				1,003,906				—
Total net cost of goods sold		$	3,633,913							$	3,480,082							$	7,324,885							$	6,689,558

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

		At February 28, 2013
		Brazil				North America				Total
Total assets		$	1,456,793			$	43,982,614			$	45,439,407

		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]

		Six Months Ended February 28, 2013
		Brazil				North America				Total
Net sales		$	1,131,469			$	9,406,628			$	10,538,097
Operating income		$	(106,759	)		$	1,950,278			$	1,843,519

		Six Months Ended February 29, 2012
		Brazil				North America				Total
Net sales		$	1,216,532			$	8,589,910			$	9,806,442
Operating income		$	(173,651	)		$	1,897,972			$	1,724,321

Fees For Services Provided to Joint Ventures [Member]

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

		Three Months Ended
		February 28, 2013				% of Total Fees for Services Provided to Joint Ventures				February 29, 2012				% of Total Fees for Services Provided to Joint Ventures
China*		$	450,586				25.4	%		$	—				0.0	%
Germany			249,513				14.1	%			251,387				19.4	%
Japan			169,205				9.6	%			214,984				16.6	%
Poland			154,839				8.7	%			130,470				10.1	%
Thailand*			148,303				8.4	%			—				0.0	%
France			147,896				8.3	%			127,004				9.8	%
Korea**			123,388				7.0	%			532				0.0	%
Sweden			77,627				4.4	%			148,277				11.4	%
Finland			72,329				4.1	%			118,911				9.2	%
United Kingdom			35,754				2.0	%			80,639				6.2	%
India			—				0.0	%			163,689				12.6	%
Other			141,441				8.0	%			62,233				4.8	%
		$	1,770,881				100.0	%		$	1,298,126				100.0	%

		Six Months Ended
		February 28, 2013				% of Total Fees for Services Provided to Joint Ventures				February 29, 2012				% of Total Fees for Services Provided to Joint Ventures
China*		$	943,897				26.1	%		$	—				0.0	%
Germany			492,213				13.6	%			500,833				18.3	%
Japan			371,186				10.3	%			503,522				18.4	%
Thailand*			301,989				8.4	%			—				0.0	%
France			276,398				7.6	%			268,643				9.8	%
Poland			266,311				7.4	%			228,298				8.3	%
Korea**			262,131				7.2	%			76,997				2.8	%
Sweden			164,619				4.6	%			304,934				11.1	%
Finland			160,180				4.4	%			251,407				9.2	%
United Kingdom			102,812				2.8	%			160,138				5.8	%
India			—				0.0	%			299,844				10.9	%
Other			275,422				7.6	%			148,762				5.4	%
		$	3,617,158				100.0	%		$	2,743,378				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.

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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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