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SCHEDULE OF ITS WHOLLY-OWNED SUBSIDIARIES INCLUDED IN THE CONSOLIDATED FINANCIAL STATEMENTS (Details)	9 Months Ended
	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

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Balance Type:	na
Period Type:	duration

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- Definition

Entity place of incorporation.

+ References

No definition available.

+ Details

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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

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- Details

Name:	srt_OwnershipAxis=NEXM_NexMetalsMiningCorpMember
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X

- Details

Name:	srt_OwnershipAxis=NEXM_NANExplorationIncMember
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Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_OwnershipAxis=NEXM_PNRAmalcoLtdMember
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Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_OwnershipAxis=NEXM_PremiumResourcesInternationalLtdMember
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Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_OwnershipAxis=NEXM_PremiumResourcesSelkirkBarbadosLimitedMember
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Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_OwnershipAxis=NEXM_PremiumResourcesSelebiBarbadosLimitedMember
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X

- Details

Name:	srt_OwnershipAxis=NEXM_PremiumNickelGroupProprietaryLimitedMember
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- Details

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