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)

v3.19.2
Share Capital - Disclosure of Detailed Information About Share Capital (Details) (Parenthetical) - shares
Jan. 31, 2019
Jan. 31, 2018
Jan. 31, 2017
Ordinary share [Member]      
Disclosure of classes of share capital [line items]      
Number of shares outstanding 29,640,965 285,019 274,839