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

Intangible Assets - Disclosure of Detailed Information About Intangible Assets (Details)

v3.21.1
Intangible Assets - Disclosure of Detailed Information About Intangible Assets (Details) - NZD ($)
$ in Thousands
Jan. 31, 2021
Jan. 31, 2020
Jan. 31, 2019
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill $ 22,849 $ 28,293 $ 37,863
Goodwill [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill 2,320
Goodwill [Member] | At Cost [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill 5,516 6,091  
Goodwill [Member] | Accumulated Impairment [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill (5,516) (6,091)  
Patents and Licences [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill 19,214 21,662 25,075
Patents and Licences [Member] | At Cost [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill 22,863 25,151  
Patents and Licences [Member] | Accumulated Depreciation and Impairment [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill (3,649) (3,489)  
Brands [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill 3,443 6,631 10,205
Brands [Member] | At Cost [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill 12,253 12,032  
Brands [Member] | Accumulated Depreciation and Impairment [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill (8,810) (5,401)  
Software & Website [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill 192 $ 263
Software & Website [Member] | At Cost [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill 15,749 15,548  
Software & Website [Member] | Accumulated Depreciation and Impairment [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill $ (15,557) $ (15,548)