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Intangible Assets (Details Narrative) - NZD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Jan. 31, 2019 | Jan. 31, 2018 | Jan. 31, 2017 | Jun. 30, 2016
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Amount of fair value less costs | $ 3,200 |  |  |
Post-tax discount rate | 10.50% |  |  |
EBITDA growth rate | 10.00% |  |  |
Terminal growth rate | 2.00% |  |  |
Increase in post-tax discount rate | 2.10% |  |  |
Decrease in sales growth rate | 0.00% |  |  |
Impairment loss recognised in profit or loss, goodwill | $ (2,320) |  |  |
Intangible assets | $ 37,864 | $ 13,012 | 14,680 | $ 14,575
Cash flow forecast period | 5 years | 5 years |  |
Sales growth rate used to extrapolate cash flow projections | 2.50% | 5.00% |  |
Royalty rate | 5.00% | 6.60% |  |
Growth rate used to extrapolate cash flow projections | 2.00% | 2.00% |  |
Impact of possible changes in key assumptions used in impairment test calculations | A 2.1% increase in the post-tax discount rate would result in an additional impairment of $951 thousand (31 January 2018: an increase of 1.5% would result an impairment of $929 thousand) against the carrying amount of the indefinite-lived brand intangibles. A reduction of the sales growth rate to 0% would result in an additional impairment of $1,554 thousand (31 January 2018: a reduction to 2% would result an impairment of $611 thousand) against the carrying amount of the indefinite-lived brand intangible assets. |  |  |
Impairment of intangible assets | $ 951 | $ 929 |  |
Goodwill [Member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Increase in post-tax discount rate | 3.25% |  |  |
Decrease in sales growth rate | 5.00% |  |  |
Impairment loss recognised in profit or loss, goodwill | $ 2,320 |  |  |
Intangible assets | 2,320 |  |  |
Brand [Member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Amount of fair value less costs | 3,900 |  |  |
Intangible assets | $ 10,205 | $ 12,463 | $ 12,036 | $ 12,105
Cash flow forecast period | 5 years |  |  |
US Brands [Member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Post-tax discount rate | 10.50% | 0.00% |  |
NZ Brands [Member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Post-tax discount rate | 11.75% | 11.40% |  |

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