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Leases (Details) - Schedule of lease term and discount rate
Apr. 30, 2022
Apr. 30, 2021
Weighted-average remaining lease term (years):    
Operating leases 5 years 5 years 9 months 18 days
Finance leases 1 year 8 months 12 days 2 years 8 months 12 days
Weighted-average discount rate:    
Operating leases 4.97% 4.97%
Finance leases 5.20% 8.25%