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Quarterly report pursuant to Section 13 or 15(d)

Revenues - Narrative (Details)

v3.20.4
Revenues - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended
Oct. 31, 2020
Oct. 31, 2020
Oct. 31, 2019
Apr. 30, 2020
Disaggregation of Revenue [Line Items] Ìý Ìý Ìý Ìý
Deferred revenue $ 8,628,498 $ 8,628,498 Ìý $ 3,712,994
Due to students 2,070,225 2,070,225 Ìý $ 2,371,844
Total revenue earned, deferred revenue $ 4,800,000 $ 3,700,000 Ìý Ìý
Revenue Benchmark | Non-US Ìý Ìý Ìý Ìý
Disaggregation of Revenue [Line Items] Ìý Ìý Ìý Ìý
Percentage of revenues from students outside the United States Ìý 1.22% 1.32% Ìý