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v2.4.1.9

Note 11 - Geographic and Segment Information (Details) - Cost of Goods Sold by Segment (USD $) | 3 Months Ended
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Nov. 30, 2014 | Nov. 30, 2013
Note 11 - Geographic and Segment Information (Details) - Cost of Goods Sold by Segment [Line Items] |  |  |  |
Cost of Goods Sold | $ 4,806,611 us-gaap_CostOfGoodsSold |  | $ 4,158,031 us-gaap_CostOfGoodsSold |
Direct Cost of Goods Sold [Member] | ZERUST [Member] |  |  |  |
Note 11 - Geographic and Segment Information (Details) - Cost of Goods Sold by Segment [Line Items] |  |  |  |
Cost of Goods Sold | 3,338,588 us-gaap_CostOfGoodsSold / ntic_CostOfGoodsSoldTypeAxis = ntic_DirectCostOfGoodsSoldMember / us-gaap_ProductOrServiceAxis = ntic_ZERUSTMember |  | 3,081,764 us-gaap_CostOfGoodsSold / ntic_CostOfGoodsSoldTypeAxis = ntic_DirectCostOfGoodsSoldMember / us-gaap_ProductOrServiceAxis = ntic_ZERUSTMember |
% of Product Sales | 53.50%ntic_CostOfGoodsSoldAsPercentageOfProductSales / ntic_CostOfGoodsSoldTypeAxis = ntic_DirectCostOfGoodsSoldMember / us-gaap_ProductOrServiceAxis = ntic_ZERUSTMember | [1] | 53.60%ntic_CostOfGoodsSoldAsPercentageOfProductSales / ntic_CostOfGoodsSoldTypeAxis = ntic_DirectCostOfGoodsSoldMember / us-gaap_ProductOrServiceAxis = ntic_ZERUSTMember | [1]
Direct Cost of Goods Sold [Member] | Natur-Tec [Member] |  |  |  |
Note 11 - Geographic and Segment Information (Details) - Cost of Goods Sold by Segment [Line Items] |  |  |  |
Cost of Goods Sold | 782,575 us-gaap_CostOfGoodsSold / ntic_CostOfGoodsSoldTypeAxis = ntic_DirectCostOfGoodsSoldMember / us-gaap_ProductOrServiceAxis = ntic_NaturTecMember |  | 449,464 us-gaap_CostOfGoodsSold / ntic_CostOfGoodsSoldTypeAxis = ntic_DirectCostOfGoodsSoldMember / us-gaap_ProductOrServiceAxis = ntic_NaturTecMember |
% of Product Sales | 80.20%ntic_CostOfGoodsSoldAsPercentageOfProductSales / ntic_CostOfGoodsSoldTypeAxis = ntic_DirectCostOfGoodsSoldMember / us-gaap_ProductOrServiceAxis = ntic_NaturTecMember | [1] | 80.30%ntic_CostOfGoodsSoldAsPercentageOfProductSales / ntic_CostOfGoodsSoldTypeAxis = ntic_DirectCostOfGoodsSoldMember / us-gaap_ProductOrServiceAxis = ntic_NaturTecMember | [1]
Indirect Cost of Goods Sold [Member] |  |  |  |
Note 11 - Geographic and Segment Information (Details) - Cost of Goods Sold by Segment [Line Items] |  |  |  |
Cost of Goods Sold | $ 685,448 us-gaap_CostOfGoodsSold / ntic_CostOfGoodsSoldTypeAxis = ntic_IndirectCostOfGoodsSoldMember |  | $ 626,803 us-gaap_CostOfGoodsSold / ntic_CostOfGoodsSoldTypeAxis = ntic_IndirectCostOfGoodsSoldMember |
% of Product Sales |  | [1] |  | [1]
[1] | 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.

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- Definition Represents the cost of goods sold as a percentage of product sales. + References No definition available. + Details
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- Definition Total costs related to goods produced and sold during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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