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Summary of Significant Accounting Policies (Details Narrative) - NZD ($)
$ in Thousands
 12 Months Ended
Jan. 31, 2020
Jan. 31, 2020
Jan. 31, 2019
Jan. 31, 2018
Jun. 30, 2020
Mar. 12, 2020
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]            
Loss for the period $ (54,305) $ (54,305) $ (49,220) $ (37,593)    
Cash flows from (used in) operating activities   (19,894) (9,434) $ (4,116)    
Net current liability 22,210 22,210        
Assets (liabilities) (6,284) (6,284) 10,519      
Increase in capital 34,093 34,093        
Amount of capital raise in planning 37,500 37,500        
Directors and Group [Member]            
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]            
Amount of capital raise in planning 52,500 $ 52,500        
Bottom of Range [Member]            
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]            
Useful lives or amortisation rates, intangible assets other than goodwill   5 years        
Top of Range [member]            
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]            
Useful lives or amortisation rates, intangible assets other than goodwill   50 years        
Bank Borrowing Facility Agreement [Member]            
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]            
Repayment of bank debt   $ 20,000        
Bank Borrowing Facility Agreement [Member] | Bottom of Range [Member]            
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]            
Repayment of bank debt   17,900        
Bank of New Zealand [Member]            
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]            
Loan facility extended     $ 20,000      
New Zealand Government [Member]            
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]            
Received subsidies $ 2,000 $ 2,000        
Events occurring after reporting date [Member]            
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]            
Increase in capital         $ 9,000  
Events occurring after reporting date [Member] | Bank of New Zealand [Member]            
SummaryOfSignificantAccountingPoliciesLineItems [Line Items]            
Loan facility extended           $ 16,700