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

Contingencies - Schedule of Contingent Liabilities (Details)

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Contingencies - Schedule of Contingent Liabilities (Details) - NZD ($)
$ in Thousands
Jan. 31, 2019
Jan. 31, 2018
Jan. 31, 2017
Landlords [Member]      
Disclosure of contingent liabilities [line items]      
Rental guarantees $ 419 $ 419 $ 571
JP Morgan Chase Bank [Member]      
Disclosure of contingent liabilities [line items]      
Standby letter of credit 291 291 286
UK Customs Department [Member]      
Disclosure of contingent liabilities [line items]      
Guarantee 304 329 282
ANZ for Merchant Service [Member]      
Disclosure of contingent liabilities [line items]      
Guarantee $ 172 $ 172