Quarterly report pursuant to Section 13 or 15(d)

Leases - Narrative (Details)

v3.23.1
Leases - Narrative (Details)
3 Months Ended 9 Months Ended
Jan. 31, 2023
USD ($)
ft²
Jan. 31, 2022
USD ($)
Jan. 31, 2023
USD ($)
ft²
Jan. 31, 2022
USD ($)
Lessee, Lease, Description [Line Items]        
Amount of office and classroom space leased (in square feet) | ft² 172,021   172,021  
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 $ 171,133 $ 177,259 $ 530,076 $ 483,872
Lease expense $ 1,002,215 $ 1,008,704 $ 3,093,914 $ 2,861,876
Minimum        
Lessee, Lease, Description [Line Items]        
Lease term 6 years   6 years  
Maximum        
Lessee, Lease, Description [Line Items]        
Lease term 8 years   8 years