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Quarterly report pursuant to Section 13 or 15(d)

Revenue (Details)

v3.20.1
Revenue (Details) - USD ($)
 3 Months Ended 9 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Jan. 31, 2020
Jan. 31, 2019
Apr. 30, 2019
Disaggregation of Revenue [Line Items] Ìý Ìý Ìý Ìý Ìý
Deferred revenue $ 5,694,743 Ìý $ 5,694,743 Ìý $ 2,456,865
Refunds due students 2,311,745 Ìý 2,311,745 Ìý $ 1,174,501
Total revenue earned, deferred revenue $ 5,500,000 Ìý $ 2,500,000 Ìý Ìý
Revenue Benchmark | Non-US Ìý Ìý Ìý Ìý Ìý
Disaggregation of Revenue [Line Items] Ìý Ìý Ìý Ìý Ìý
Percentage of revenues from students outside the United States 1.90% 1.70% 1.90% 2.10% Ìý