XML 119 R84.htm IDEA: XBRL DOCUMENT v3.24.0.1

Income Taxes - Disclosure Of Change In Fair Value of Convertible Debentures Attributable To Credit Risk Fluctuation (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Change In Fair Value of Convertible Debentures Attributable To Credit Risk Fluctuation [Line Items]
Deferred income tax recovery	$ (449)	$ (461)
Change In Fair Value Of Convertible Debentures Attributable To Change In Credit Risk
Disclosure Of Change In Fair Value of Convertible Debentures Attributable To Credit Risk Fluctuation [Line Items]
Deferred income tax recovery	(328)	17
Change in fair value of marketable securities
Disclosure Of Change In Fair Value of Convertible Debentures Attributable To Credit Risk Fluctuation [Line Items]
Deferred income tax recovery	$ (121)	$ (478)

X

- Definition

Deferred income tax recovery.

+ References

No definition available.

+ Details

Name:	nxe_DeferredIncomeTaxRecovery
Namespace Prefix:	nxe_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Disclosure Of Change In Fair Value of Convertible Debentures Attributable To Credit Risk Fluctuation

+ References

No definition available.

+ Details

Name:	nxe_DisclosureOfChangeInFairValueOfConvertibleDebenturesAttributableToCreditRiskFluctuationLineItems
Namespace Prefix:	nxe_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis=nxe_ChangeInFairValueOfConvertibleDebenturesAttributableToChangeInCreditRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis=nxe_ChangeInFairValueOfMarketableSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: