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Intangible Assets (Tables)
 12 Months Ended
Jan. 31, 2019
Disclosure of detailed information about intangible assets [abstract]  
Disclosure of Detailed Information About Intangible Assets

   

31 January 2019

NZ$000’s

     31 January 2018
NZ$000’s		     31 January 2017
NZ$000’s		  
Goodwill                  
Cost     5,607       -       -  
Accumulated impairment     (3,287 )     -       -  
      2,320       -       -  
Patents and licences                        
Cost     25,993       919       1,169  
Accumulated amortisation and impairment     (918 )     (718 )     (573 )
      25,075       201       596  
Brands                        
Cost     14,769       12,463       12,036  
Accumulated amortisation and impairment     (4,563 )     -       -  
      10,205       12,463       12,036  
Software                        
Cost     15,718       15,788       17,308  
Accumulated amortisation and impairment     (15,455 )     (15,440 )     (15,260 )
      263       348       2,048  
Total Intangible assets     37,864       13,012       14,680  
Disclosure of Detailed Information About Movements in Carrying Amounts of Intangible Assets

    Software
NZ$000’s		     Patents and licences
NZ$000’s		     Brands
NZ$000’s		     Goodwill
NZ$000’s		     Total
NZ$000’s		  
Year ended 31 January 2019                              
Balance at the beginning of the year     348       201       12,463       -       13,012  
Additions     33       25,076       2,726       5,798       33,633  
Amortisation     (29 )     (202 )     -       -       (231 )
Impairment     (83 )     -       (4,563 )     (3,287 )     (7,933 )
Foreign exchange movements     (6 )     -       (420 )     (192 )     (618 )
Closing value at 31 January 2019     263       25,075       10,205       2,320       38,864  

 

    Software
NZ$000’s		     Patents and licences
NZ$000’s		     Brands  
NZ$000’s		     Goodwill
NZ$000’s		     Total
NZ$000’s		  
Year ended 31 January 2018                              
Balance at the beginning of the year     2,048       596       12,036       -       14,680  
Additions     106       12       -       -       118  
Amortisation     (163 )     (143 )     -       -       (306 )
Impairment     (1,650 )     (264 )     -       -       (1,914 )
Foreign exchange movements     7       -       427       -       434  
Closing value at 31 January 2018     348       201       12,463       -       13,012  

  

    Software
NZ 000’s
$		     Patents and licences
NZ 000’s
$		     Brands
NZ 000’s
$		     Goodwill
NZ 000’s
$		     Total
NZ 000’s
$		  
7 months ended 31 January 2017                              
Balance at the beginning of the year     2,196       274       12,105       -       14,575  
Additions     -       351       -       -       351  
Amortisation     (148 )     (30 )     -       -       (178 )
Foreign exchange movements     -       1       (69 )     -       (68 )
Closing value at 31 January 2017     2,048       596       12,036       -       14,680  
Disclosure of Information for Cash-generating Units

Description of the cash-generating unit (CGU)  

For the Year Ended 31

January 2019
NZ $000’s

    

For the Year

Ended 31

January 2018
NZ $000’s

    

For the 7

Months Ended

31 January 2017
NZ $000’s

  
United States     2,320       -       -  
      2,320       -       -