Summary Of Significant Accounting Policies (Details Narrative) - USD ($)	3 Months Ended		9 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Feb. 28, 2021	Feb. 29, 2020	May 31, 2020
Allowance for doubtful accounts	$ 94,007		$ 94,007		$ 103,029
Bargain purchase gain	(2,277)	$ 0	1,187,235	$ 0
Intangible assets, net	$ 1,315,174		1,315,174		$ 287,602
Shipping and Handling
Revenues			$ 5,380	$ 21,066