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Related Party Transactions (Details) - USD ($)
3 Months Ended
Jul. 31, 2020
Jul. 31, 2019
Related Party Transaction [Line Items]    
Due to related parties $ 7,400  
Board Member One | Board Member    
Related Party Transaction [Line Items]    
Related party transaction, amounts of transaction 18,000 $ 18,000
Board Member Two | Board Member    
Related Party Transaction [Line Items]    
Related party transaction, amounts of transaction $ 5,600 $ 15,200