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

Share Capital - Disclosure of Detailed Information About Share Capital (Details) (Parenthetical)

v3.21.1
Share Capital - Disclosure of Detailed Information About Share Capital (Details) (Parenthetical) - shares
Jan. 31, 2021
Jan. 31, 2020
Ordinary shares [member]    
Disclosure of classes of share capital [line items]    
Number of shares outstanding 446,582,604 4,697,204