Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Profit and Loss Information - Disclosure of Components of Income Tax Expenses (Details) (Parenthetical)

v3.19.3.a.u2
Profit and Loss Information - Disclosure of Components of Income Tax Expenses (Details) (Parenthetical)
6 Months Ended
Jul. 31, 2019
Jul. 31, 2018
Profit And Loss Information    
Tax rate 28.00% 28.00%