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Key Management Personnel Remuneration - Disclosure of Detailed Information About Key Management Personnel (Details) - NZD ($)
$ in Thousands
12 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Jan. 31, 2018
Key Management Personnel Remuneration      
Short-term employee benefits $ 3,182 $ 2,056 $ 1,743
Key management personnel remuneration $ 3,182 $ 2,056 $ 1,743