Schedule of Inventory (Details) - USD ($)	Aug. 31, 2021	May 31, 2021
Inventory Disclosure [Abstract]
Raw materials	$ 2,014,203	$ 2,520,654
Finished goods	1,105,192	921,320
Total inventory	$ 3,119,395	$ 3,441,974

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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