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Staff Costs - Disclosure of Detailed Information About Employee Benefits Expense (Details) - NZD ($)
$ in Thousands
12 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Jan. 31, 2018
Staff Costs      
Salaries and wages $ 26,920 $ 30,872 $ 33,613
Defined contribution expenses 1,089 508 545
Employee benefits expense $ 28,009 $ 31,380 $ 34,158