XML 81 R62.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Note 12 - Geographic And Segment Information (Details) - Net Sales By Segment (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 31, 2013 | May 31, 2013 | Feb. 28, 2013 | Nov. 30, 2012 | Aug. 31, 2013 | Aug. 31, 2012
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |  |  |
Net sales | $ 6,086,734 | $ 5,877,033 | $ 5,246,350 | $ 5,291,747 | $ 22,501,864 | $ 22,781,653
Change in $ |  |  |  |  | (279,789) |
Change in % |  |  |  |  | (1.20%) |
ZERUST [Member] |  |  |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |  |  |
Net sales |  |  |  |  | 20,457,198 | 20,971,275
Change in $ |  |  |  |  | (514,077) |
Change in % |  |  |  |  | (2.50%) |
Natur-Tec [Member] |  |  |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |  |  |
Net sales |  |  |  |  | 2,044,666 | 1,810,378
Change in $ |  |  |  |  | $ 234,288 |
Change in % |  |  |  |  | 12.90% |

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | ntic_IncreaseDecreaseNetSalesFromPriorFiscalYear
Namespace Prefix: | ntic_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | ntic_PercentageChangeNetSalesFromPriorFiscalYear
Namespace Prefix: | ntic_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
Name: | us-gaap_SalesRevenueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_SegmentReportingRevenueReconcilingItemLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration