Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Fair Value Measurement - Schedule of Valuation Techniques for Fair Value Measurements Categorized Within Level 3 (Details)

v3.19.2
Fair Value Measurement - Schedule of Valuation Techniques for Fair Value Measurements Categorized Within Level 3 (Details) - Level 3 of fair value hierarchy [Member]
$ in Thousands
12 Months Ended
Jan. 31, 2019
NZD ($)
DisclosureOfFairValueMeasurementLineItems [Line Items]  
Balance at 31 January 2018 $ 1,110
Conversion (1,110)
Balance at 31 January 2019