Annual report pursuant to Section 13 and 15(d)

Revenue - Narrative (Details)

v3.20.2
Revenue - Narrative (Details) - USD ($)
12 Months Ended
Apr. 30, 2020
Apr. 30, 2019
Disaggregation of Revenue [Line Items]    
Deferred revenue $ 3,712,994  
Refunds due students 2,371,844 $ 1,174,501
Total revenue earned, deferred revenue $ 2,500,000  
Revenue Benchmark | Non-US    
Disaggregation of Revenue [Line Items]    
Concentration risk (as a percent) 2.50% 1.60%