Quarterly report pursuant to Section 13 or 15(d)

Leases - Future Minimum Payments Under Operating Leases (Details)

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Leases - Future Minimum Payments Under Operating Leases (Details) - USD ($)
Jul. 31, 2021
Apr. 30, 2021
Lessee, Operating Lease, Liability, Payment, Due [Abstract]    
2022 (remaining) $ 3,076,200  
2023 3,647,737  
2024 3,514,179  
2025 3,288,066  
2026 3,383,530  
Thereafter 10,417,592  
Total future minimum lease payments 27,327,304  
Less: imputed interest (9,376,184)  
Present value of operating lease liabilities $ 17,951,120 $ 18,328,629