Annual report pursuant to Section 13 and 15(d)

Leases - Narrative (Details)

v3.21.2
Leases - Narrative (Details)
12 Months Ended
Apr. 30, 2021
USD ($)
ft²
Apr. 30, 2020
USD ($)
Lessee, Lease, Description [Line Items]    
Amount of office and classroom space leased (in square feet) | ft² 166,555  
Lease extension term 5 years  
Total future minimum lease payments (as a percent) 93.00%  
Incremental borrowing rate (as a percent) 12.00%  
Amortization of tenant improvement allowances $ 306,217 $ 0
Lease expense $ 2,775,000 $ 2,516,213
Tampa, Florida    
Lessee, Lease, Description [Line Items]    
Lease term 10 years  
Austin, Texas    
Lessee, Lease, Description [Line Items]    
Lease term 8 years  
Phoenix, Arizona    
Lessee, Lease, Description [Line Items]    
Lease term 7 years