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Loss for the Period - Disclosure of Detailed Information About Profit Loss from Operating Activities (Details) (Parenthetical) - NZD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2019
Loss For Period
Staff costs for warrants	$ 11,600	$ 11,600	$ 11,600

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- References

No definition available.

+ Details

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Namespace Prefix:	NAKD_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

Staff costs for warrants.

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No definition available.

+ Details

Name:	NAKD_StaffCostsForWarrants
Namespace Prefix:	NAKD_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration