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Quarterly report pursuant to Section 13 or 15(d)

Leases - Narrative (Details)

v3.22.0.1
Leases - Narrative (Details)
3 Months Ended 9 Months Ended
Jan. 31, 2022
USD ($)
´Ú³Ù²
Jan. 31, 2021
USD ($)
Jan. 31, 2022
USD ($)
´Ú³Ù²
Jan. 31, 2021
USD ($)
Lessee, Lease, Description [Line Items] Ìý Ìý Ìý Ìý
Amount of office and classroom space leased (in square feet) | ´Ú³Ù² 191,328 Ìý 191,328 Ìý
Lease extension term 5 years Ìý 5 years Ìý
Total future minimum lease payments (as a percent) 96.00% Ìý 96.00% Ìý
Incremental borrowing rate (as a percent) 12.00% Ìý 12.00% Ìý
Amortization of tenant improvement allowances $ 177,259 $ 483,872 $ 0 $ 0
Lease expense 1,008,704 $ 717,664 2,861,876 $ 1,779,317
Leases not yet commenced, liability $ 3,700,000 Ìý $ 3,700,000 Ìý
Minimum Ìý Ìý Ìý Ìý
Lessee, Lease, Description [Line Items] Ìý Ìý Ìý Ìý
Lease term 6 years Ìý 6 years Ìý
Maximum Ìý Ìý Ìý Ìý
Lessee, Lease, Description [Line Items] Ìý Ìý Ìý Ìý
Lease term 8 years Ìý 8 years Ìý