XML 53 R40.htm IDEA: XBRL DOCUMENT
v3.21.2

Note 1 - Nature of Business and Significant Accounting Policies (Details Textual) | 12 Months Ended |  |
--- | --- | --- | ---
Aug. 31, 2021 USD ($) | Sep. 01, 2021 | Aug. 31, 2020 USD ($)
Number of Countries in which Entity Operates | 65 |  |
Number of Operating Segments | 2 |  |
Number of Joint Venture Arrangements | 18 |  |
Accounts Receivable, Allowance for Credit Loss, Ending Balance | $ 382,000 |  | $ 90,000
Subsequent Event [Member] | Acquisition of Remaining Ownership Interest in Harita-NTI Limited [Member] |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  | 50.00% |
Natur-Tech India [Member] |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 75.00% |  |
Natur Tec Lanka [Member] |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 75.00% |  |
Zerust Brazil [Member] |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 85.00% |  |
NTI Asean LLC [Member] |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 60.00% |  |
Zerust Singapore Pte Ltd [Member] |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 60.00% |  |
Zerust Vietnam Co. Ltd [Member] |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 60.00% |  |
Maximum [Member] | Various Joint Ventures [Member] |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 50.00% |  |

X
- Definition Number of active joint venture arrangements in which the company participates, either directly or indirectly. + References No definition available. + Details
Name: | ntic_NumberOfJointVentureArrangements
Namespace Prefix: | ntic_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 + Details
Name: | us-gaap_AllowanceForDoubtfulAccountsReceivable
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
Name: | us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of countries in which the entity operates as of balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfCountriesInWhichEntityOperates
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599 + Details
Name: | us-gaap_NumberOfOperatingSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=ntic_AcquisitionOfRemainingOwnershipInterestInHaritaNTILimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=ntic_NaturtechIndiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=ntic_NaturTecLankaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=ntic_ZerustBrazilMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=ntic_NTIAseanLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=ntic_ZerustSingaporePteLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=ntic_ZerustVietnamCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=ntic_VariousJointVenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |