SHAREHOLDERS' EQUITY (Details) - USD ($)			3 Months Ended	9 Months Ended
	Jul. 21, 2020	Jul. 20, 2020	Feb. 28, 2021	Feb. 28, 2021	Feb. 29, 2020	Jan. 01, 2021
SHAREHOLDERS' EQUITY (Details) [Line Items]
Proceeds from Issuance of Common Stock				$ 1,011,475	$ 366,258
Stock Issued During Period, Shares, New Issues (in Shares)			158,889
Public Trading Volume of Stock			$ 25,000,000
Common Stock [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Stock Issued During Period, Shares, New Issues (in Shares)				158,889	552,792
Common Stock [Member] | Maximum [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Proceeds from Issuance of Common Stock	$ 90,000,000	$ 45,000,000
Common Stock [Member] | At The Market [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Proceeds from Issuance of Common Stock			$ 1,011,475
Convertible Preferred Stock [Member] | Common Stock [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Convertible Preferred Stock, Shares Issued upon Conversion (in Shares)						321,429