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

Summary of Significant Accounting Policies - Disclosure of Detailed Information About Estimated Useful Lives of Property, Plant and Equipment (Details)

v3.19.2
Summary of Significant Accounting Policies - Disclosure of Detailed Information About Estimated Useful Lives of Property, Plant and Equipment (Details)
12 Months Ended
Jan. 31, 2019
Leasehold improvements [member]  
BasisOfPreparationLineItems [Line Items]  
Useful lives or depreciation rates, property, plant and equipment 1 - 10 years
Plant, furniture, fittings and motor vehicles [Member]  
BasisOfPreparationLineItems [Line Items]  
Useful lives or depreciation rates, property, plant and equipment 3 - 7 years