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Fair Value Loss on Convertible Notes Derivative and Warrants (Details Narrative) - NZD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2019
Fair Value Loss On Convertible Notes Derivative And Warrants
Fair value loss on convertible notes derivative and warrants	$ 26,552		$ 775

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- Definition

The amount of fair value gain loss on convertible notes derivative.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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