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Other current assets (Details) - USD ($)	Apr. 30, 2022	Apr. 30, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid inventory	$ 1,707,085	$ 478,939
Accrued interest income	385,730
Prepaid expenses	262,069	115,587
Security deposits		9,372
Due from related party		75,000
Total	$ 2,354,884	$ 678,898

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