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SCHEDULE OF ITS WHOLLY-OWNED SUBSIDIARIES INCLUDED IN THE CONSOLIDATED FINANCIAL STATEMENTS (Details)	6 Months Ended
	Jun. 30, 2025
NexMetals Mining Corp [Member]
Place of Incorporation	Ontario, Canada
Percentage Ownership	100.00%
NAN Exploration Inc [Member]
Place of Incorporation	Ontario, Canada
PNR Amalco Ltd [Member]
Place of Incorporation	Ontario, Canada
Percentage Ownership	100.00%
Premium Resources International Ltd [Member]
Place of Incorporation	Barbados
Percentage Ownership	100.00%
Premium Resources Selkirk (Barbados) Limited [Member]
Place of Incorporation	Barbados
Percentage Ownership	100.00%
Premium Resources Selebi (Barbados) Limited [Member]
Place of Incorporation	Barbados
Percentage Ownership	100.00%
Premium Nickel Group Proprietary Limited [Member]
Place of Incorporation	Botswana
Percentage Ownership	100.00%
Premium Nickel Resources Proprietary Limited [Member]
Place of Incorporation	Botswana
Percentage Ownership	100.00%

X

- 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

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

- Details

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

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

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