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CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS` EQUITY (Unaudited) - 3 months ended Aug. 31, 2019 - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balances at May. 31, 2019	$ 774,173	$ 22,830,006	$ (36,531)	$ (19,586,678)	$ 3,980,970
Balances (in Shares) at May. 31, 2019	9,677,188
Exercise of stock options	$ 3,330	30,698			34,028
Exercise of stock options (in Shares)	41,625
Net proceeds from ATM	$ 4,000	108,608			112,608
Net proceeds from ATM (in Shares)	50,000
Foreign currency translation			(3,442)		(3,442)
Compensation expense in connection with options granted		5,850			5,850
Net loss				(506,296)	(506,296)
Balances at Aug. 31, 2019	$ 781,503	$ 22,975,162	$ (39,973)	$ (20,092,974)	$ 3,623,718
Balances (in Shares) at Aug. 31, 2019	9,768,813

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Amount of increase to additional paid-in capital (APIC) for recognition of cost for option under share-based payment arrangement.

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