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Significant Customers (Details) - Customer Concentration Risk - One Customer
12 Months Ended
Apr. 30, 2023
Apr. 30, 2022
Revenue    
Revenue, Major Customer [Line Items]    
Concentration risk percentage 14.00% 13.00%
Accounts Receivable    
Revenue, Major Customer [Line Items]    
Concentration risk percentage 14.00% 17.00%