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Inventory (Details) - USD ($)	Aug. 31, 2019	May 31, 2019
Inventory Disclosure [Abstract]
Finished goods	$ 74,180	$ 69,256
Raw materials	235,328	195,321
Inventory, net	$ 309,508	$ 264,578

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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
-SubTopic 10
-Section S99
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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
-Topic 210
-SubTopic 10
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