Quarterly report pursuant to Section 13 or 15(d)

Leases - Narrative (Details)

v3.21.2
Leases - Narrative (Details)
3 Months Ended 6 Months Ended
Oct. 31, 2021
USD ($)
ft²
Oct. 31, 2020
USD ($)
Oct. 31, 2021
USD ($)
ft²
Oct. 31, 2020
USD ($)
Lessee, Lease, Description [Line Items]        
Amount of office and classroom space leased (in square feet) | ft² 174,528   174,528  
Lease extension term 5 years   5 years  
Total future minimum lease payments (as a percent) 95.00%   95.00%  
Incremental borrowing rate (as a percent) 12.00%   12.00%  
Amortization of tenant improvement allowances $ 152,499 $ 302,887 $ 0 $ 0
Lease expense 916,435 $ 664,415 1,853,172 $ 1,061,653
Leases not yet commenced, liability $ 3,700,000   $ 3,700,000  
Minimum        
Lessee, Lease, Description [Line Items]        
Lease term 7 years   7 years  
Maximum        
Lessee, Lease, Description [Line Items]        
Lease term 10 years   10 years