Quarterly report pursuant to Section 13 or 15(d)

Revenue - Schedule of Disaggregated Revenue (Details)

v3.21.2
Revenue - Schedule of Disaggregated Revenue (Details) - USD ($)
3 Months Ended
Jul. 31, 2021
Jul. 31, 2020
Disaggregation of Revenue [Line Items]    
Revenue $ 19,430,995 $ 15,165,562
Tuition    
Disaggregation of Revenue [Line Items]    
Revenue 17,121,680 13,367,308
Course fees    
Disaggregation of Revenue [Line Items]    
Revenue 2,003,340 1,599,693
Book fees    
Disaggregation of Revenue [Line Items]    
Revenue 27,759 39,138
Exam fees    
Disaggregation of Revenue [Line Items]    
Revenue 196,042 70,655
Service fees    
Disaggregation of Revenue [Line Items]    
Revenue $ 82,174 $ 88,768