Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

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

v3.20.2
Intangible Assets - Disclosure of Detailed Information About Intangible Assets (Details) - NZD ($)
$ in Thousands
Jul. 31, 2020
Jan. 31, 2020
Jul. 31, 2019
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill $ 26,397 $ 28,293 $ 32,431
Goodwill [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill
Goodwill [Member] | At Cost [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill 5,901 6,091  
Goodwill [Member] | Accumulated Impairment [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill (5,901) (6,091)  
Patents and Licences [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill 20,770 21,662 24,202
Patents and Licences [Member] | At Cost [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill 24,393 25,151  
Patents and Licences [Member] | Accumulated Amortisation and Impairment [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill (3,623) (3,489)  
Brands [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill 5,544 6,631 8,229
Brands [Member] | At Cost [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill 12,303 12,032  
Brands [Member] | Accumulated Amortisation and Impairment [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill (6,759) (5,401)  
Software & Website [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill 83
Software & Website [Member] | At Cost [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill 15,625 15,548  
Software & Website [Member] | Accumulated Amortisation and Impairment [Member]      
Disclosure of detailed information about intangible assets [line items]      
Total intangible assets and goodwill $ (15,542) $ (15,548)