Leases (Details - Operating and finance leases)	Jul. 31, 2023	Apr. 30, 2023
Leases [Abstract]
Weighted average lease term, operating leases	16 years 4 months 24 days	16 years 7 months 6 days
Weighted average lease term, finance lease	3 years 4 months 24 days	3 years 8 months 12 days
Weighted average discount rate, operating leases	6.00%	6.00%
Weighted average discount rate, finance lease	5.30%	5.30%