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Intangible Assets - Disclosure of Detailed Information about Movements in Carrying Amounts of Intangible Assets (Details) - NZD ($) $ in Thousands | 7 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2017 | Jan. 31, 2019 | Jan. 31, 2018
Disclosure of detailed information about intangible assets [line items] |  |  |
Balance at the beginning of the year | $ 14,575 | $ 13,012 | $ 14,680
Additions | 351 | 33,633 | 118
Amortisation | (178) | (231) | (306)
Impairment |  | (7,933) | (1,914)
Foreign exchange movements | (68) | (618) | 434
Closing value | 14,680 | 37,864 | 13,012
Software [Member] |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Balance at the beginning of the year | 2,196 | 348 | 2,048
Additions |  | 33 | 106
Amortisation | (148) | (29) | (163)
Impairment |  | (83) | (1,650)
Foreign exchange movements |  | (6) | 7
Closing value | 2,048 | 263 | 348
Patents and Licences [Member] |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Balance at the beginning of the year | 274 | 201 | 596
Additions | 351 | 25,076 | 12
Amortisation | (30) | (202) | (143)
Impairment |  |  | (264)
Foreign exchange movements | 1 |  |
Closing value | 596 | 25,075 | 201
Brand [Member] |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Balance at the beginning of the year | 12,105 | 12,463 | 12,036
Additions |  | 2,726 |
Amortisation |  |  |
Impairment |  | (4,563) |
Foreign exchange movements | (69) | (420) | 427
Closing value | 12,036 | 10,205 | 12,463
Goodwill [Member] |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Balance at the beginning of the year |  |  |
Additions |  | 5,798 |
Amortisation |  |  |
Impairment |  | (3,287) |
Foreign exchange movements |  | (192) |
Closing value |  | $ 2,320 |

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- Definition The amount of additions to intangible assets other than goodwill, other than those acquired through business combinations. [Refer: Business combinations [member]; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2018-01-01 -Paragraph 118 -Subparagraph e -Clause i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2018-03-01&anchor=para_118_e_i&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of amortisation of intangible assets other than goodwill. [Refer: Depreciation and amortisation expense; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2018-01-01 -Paragraph 118 -Subparagraph e -Clause vi -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2018-03-01&anchor=para_118_e_vi&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of impairment loss recognised in profit or loss for intangible assets and goodwill. [Refer: Impairment loss recognised in profit or loss; Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2018-01-01 -Paragraph 118 -Subparagraph e -Clause iv -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2018-03-01&anchor=para_118_e_iv&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The increase (decrease) in intangible assets and goodwill resulting from the net exchange differences arising when the financial statements are translated from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2018-01-01 -Paragraph 118 -Subparagraph e -Clause vii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2018-03-01&anchor=para_118_e_vii&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of intangible assets and goodwill held by the entity. [Refer: Goodwill; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard -URIDate 2018-03-16 + Details
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