| Leases (Tables)
 | 9 Months Ended | 
| Jan. 31, 2023 | 
|---|
| Leases [Abstract] | Ìý | 
| Schedule of Right-of-Use Assets and Operating Lease Liabilities | 
ROU assets are summarized below:
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | January 31, 2023 |  | April 30, 2022 |  
| ROU assets - Operating facility leases |  | $ | 18,548,616Ìý |  |  | $ | 15,958,721Ìý |  |  
| Less: accumulated amortization |  | (4,682,744) |  |  | (3,312,771) |  |  
| Total ROU assets |  | $ | 13,865,872Ìý |  |  | $ | 12,645,950Ìý |  |  
 
Operating lease obligations, related to the ROU assets are summarized below:
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  | January 31, 2023 |  | April 30, 2022 |  
| Total lease liabilities |  | $ | 25,634,092Ìý |  |  | $ | 22,517,355Ìý |  |  
| Reduction of lease liabilities |  | (5,417,572) |  |  | (3,671,466) |  |  
| Total operating lease obligations |  | $ | 20,216,520Ìý |  |  | $ | 18,845,889Ìý |  |  | 
| Future Minimum Payments Under Operating Leases | The following is a schedule by future minimum lease payments required under operating leases that have initial or remaining non-cancelable lease terms in excess of one year as of JanuaryÌý31, 2023 (by fiscal year). 
|  |  |  |  |  |  |  |  |  |  
| Maturity of Lease Obligations |  | Lease Payments |  
| 2023 (remaining) |  | $ | 1,151,111Ìý |  |  
| 2024 |  | 4,739,252Ìý |  |  
| 2025 |  | 4,547,151Ìý |  |  
| 2026 |  | 4,677,144Ìý |  |  
| 2027 |  | 4,782,909Ìý |  |  
| Thereafter |  | 9,727,292Ìý |  |  
| Total future minimum lease payments |  | 29,624,859Ìý |  |  
| ÌýÌýÌýÌýLess: imputed interest |  | (9,408,339) |  |  
| Present value of operating lease liabilities |  | $ | 20,216,520Ìý |  |  | 
| Schedule of Balance Sheet Information Related to Leases | 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
| Balance Sheet Classification |  | January 31, 2023 |  | April 30, 2022 |  
| Operating lease obligations, current portion |  | $ | 2,346,766Ìý |  |  | $ | 2,036,570Ìý |  |  
| Operating lease obligations, less current portion |  | 17,869,754Ìý |  |  | 16,809,319Ìý |  |  
| Total operating lease obligations |  | $ | 20,216,520Ìý |  |  | $ | 18,845,889Ìý |  |  | 
| Schedule of Other Information Related to Leases | 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
| Other Information |  | January 31, 2023 |  | April 30, 2022 |  
| Weighted average remaining lease term (in years) |  | 6.2 |  | 6.8 |  
| Weighted average discount rate |  | 12Ìý | % |  | 12Ìý | % |  |