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Inventory (Details) - USD ($)	Aug. 31, 2020	May 31, 2020
Inventory Disclosure [Abstract]
Finished goods	$ 28,215	$ 29,839
Raw materials	477,535	258,285
Inventory, net	$ 505,750	$ 288,124

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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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-Name Accounting Standards Codification
-Topic 210
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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed 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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-Name Accounting Standards Codification
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