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Inventories (Tables)
12 Months Ended
Jan. 31, 2019
Disclosure of inventories [Abstract]  
Disclosure of Detailed Information About Inventories

    31 January 2019 
NZ$000’s
    31 January 2018 
NZ$000’s
    31 January 2017 
NZ$000’s
 
Finished goods     21,564       31,451       37,904  
Provision for impairment     (444 )     (338 )     (153 )
      21,120       31,113       37,751