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Note 12 - Commitments and Contingencies (Details Textual) | Feb. 29, 2024 | Feb. 28, 2023
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Entity Wide Trade Joint Venture Receivables, Three Joint Ventures, Percentage | 68.40% |
Entity Wide Trade Joint Venture Receivables, Two Joint Ventures, Percentage |  | 68.10%

X
- Definition Percentage of total trade joint venture receivables accounted for by three joint ventures. + References No definition available. + Details
Name: | ntic_EntityWideTradeJointVentureReceivablesThreeJointVenturesPercentage
Namespace Prefix: | ntic_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of total trade joint venture receivables accounted for by two joint ventures. + References No definition available. + Details
Name: | ntic_EntityWideTradeJointVentureReceivablesTwoJointVenturesPercentage
Namespace Prefix: | ntic_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant