Inventory (Details) - USD ($)	Aug. 31, 2020	May 31, 2020	Aug. 31, 2019
Inventory
Inventory - finished goods	$ 1,222		$ 0
Inventory - raw materials	544		0
Less: Inventory impairment allowance	0		0
Inventory	$ 1,766	$ 2,583	$ 0

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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 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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Amount of valuation reserve for inventory.

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