Annual report pursuant to Section 13 and 15(d)

Leases - Schedule of Right-of-Use Assets (Details)

v3.21.2
Leases - Schedule of Right-of-Use Assets (Details) - USD ($)
Apr. 30, 2021
Apr. 30, 2020
May 01, 2019
Leases [Abstract]      
ROU assets - Operating facility leases $ 14,308,296 $ 8,998,825  
Less: accumulated reduction (1,593,433) (2,585,974)  
Total ROU assets $ 12,714,863 $ 6,412,851 $ 8,000,000