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SCHEDULE OF ITS WHOLLY-OWNED SUBSIDIARIES INCLUDED IN THE CONSOLIDATED FINANCIAL STATEMENTS (Details) | 9 Months Ended
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Sep. 30, 2025
NexMetals Mining Corp [Member] |
BasisOfPresentationAndSignificantAccountingPoliciesLineItems [Line Items] |
Place of Incorporation | British Columbia, Canada
Percentage Ownership | 100.00%
NAN Exploration Inc [Member] |
BasisOfPresentationAndSignificantAccountingPoliciesLineItems [Line Items] |
Place of Incorporation | Ontario, Canada
PNR Amalco Ltd [Member] |
BasisOfPresentationAndSignificantAccountingPoliciesLineItems [Line Items] |
Place of Incorporation | Ontario, Canada
Percentage Ownership | 100.00%
Premium Resources International Ltd [Member] |
BasisOfPresentationAndSignificantAccountingPoliciesLineItems [Line Items] |
Place of Incorporation | Barbados
Percentage Ownership | 100.00%
Premium Resources Selkirk (Barbados) Limited [Member] |
BasisOfPresentationAndSignificantAccountingPoliciesLineItems [Line Items] |
Place of Incorporation | Barbados
Percentage Ownership | 100.00%
Premium Resources Selebi (Barbados) Limited [Member] |
BasisOfPresentationAndSignificantAccountingPoliciesLineItems [Line Items] |
Place of Incorporation | Barbados
Percentage Ownership | 100.00%
Premium Nickel Group Proprietary Limited [Member] |
BasisOfPresentationAndSignificantAccountingPoliciesLineItems [Line Items] |
Place of Incorporation | Botswana
Percentage Ownership | 100.00%
Premium Nickel Resources Proprietary Limited [Member] |
BasisOfPresentationAndSignificantAccountingPoliciesLineItems [Line Items] |
Place of Incorporation | Botswana
Percentage Ownership | 100.00%

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- References No definition available. + Details
Name: | NEXM_BasisOfPresentationAndSignificantAccountingPoliciesLineItems
Namespace Prefix: | NEXM_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Entity place of incorporation. + References No definition available. + Details
Name: | NEXM_EntityPlaceOfIncorporation
Namespace Prefix: | NEXM_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- 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

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

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

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

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

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

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

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

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