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Courseware and Accreditation -Schedule of Amortization Expense of Courseware and Accreditation (Details) - USD ($)
3 Months Ended
Jul. 31, 2021
Jul. 31, 2020
Courseware, net    
Finite-Lived Intangible Assets [Line Items]    
Amortization expense $ 15,948 $ 11,947