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Note 11 - Geographic And Segment Information | 3 Months Ended
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Nov. 30, 2012
Segment Reporting Disclosure [Text Block] | 11. GEOGRAPHIC AND SEGMENT INFORMATION Net sales by geographic location as a percentage of total consolidated net sales for the three months ended November 30, 2012 and 2011 were as follows:
|  | 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 | %
Net sales by geographic location are based on the location of the customer. Fees for services provided to joint ventures by geographic location as a percentage of total fees for services provided to joint ventures during the three months ended November 30, 2012 and 2011 were as follows:
|  | 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 | %
*Joint Ventures owned by NTI Asean. **Joint Venture owned by NTI Asean as of November 30, 2012, but not as of November 30, 2011. NTI Asean results are not included on the consolidated financial statements for the three months ended November 30, 2011. (See Note 2) The following table sets forth the Company’s net sales for the three months ended November 30, 2012 and 2011 by segment:
|  | 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 |
The following table sets forth the Company’s cost of goods sold for the three months ended November 30, 2012 and 2011 by segment:
|  | 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 |  |  |  |  |
* The percent of segment sales is calculated by dividing the direct cost of goods sold for each individual segment category by the net sales for each segment category. The Company’s management utilizes product net sales and direct and indirect cost of goods sold for each product in reviewing the financial performance of a product type. Further allocation of Company expenses or assets, aside from amounts presented in the tables above, is not utilized in evaluating product performance, nor does such allocation occur for internal financial reporting. Sales to the Company’s joint ventures are included in the foregoing geographic and segment information, however, sales by the Company’s joint ventures to other parties are not included. The foregoing geographic and segment information represents only sales and cost of goods sold recognized directly by the Company. The geographical distribution of key financial statement data is as follows:
|  | 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 |
|  | 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 |
Total assets located in Brazil primarily consist of cash and cash equivalents, customer receivables and inventory. These assets are periodically reviewed to assure the net realizable value from the estimated future production based on forecasted sales exceeds the carrying value of the assets.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8864-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8984-108599 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8380-108599 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8538-108599 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8595-108599 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8971-108599 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8844-108599 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9031-108599 Reference 15: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 + Details
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