Inventory - Schedule of Inventory (Details) - USD ($)	Feb. 28, 2019	May 31, 2018
Inventory Disclosure [Abstract]
Raw materials	$ 2,006,573	$ 864,339
Finished goods	3,144,844	2,224,928
Total inventory	$ 5,151,417	$ 3,089,267

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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.

+ References

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-Publisher FASB
-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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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