Summary Of Significant Accounting Policies (Details Narrative) - USD ($)	3 Months Ended
Aug. 31, 2020	Aug. 31, 2019	May 31, 2020
Allowance for doubtful accounts	$ 94,007		$ 103,029
Bargain purchase gain	1,271,615	$ 0
Intangible assets acquired	1,117,470	0
Shipping and Handling
Revenues	$ 4,984	$ 37,228

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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+ Details