Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical)

v3.22.1
Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
Feb. 28, 2022
May 31, 2021
Preferred stock, par value $ 0.001 $ 0.001
Preferred Stock, Shares Authorized 5,000,000 5,000,000
Preferred stock liquidation preference $ 5,000 $ 5,000
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 800,000,000 800,000,000
Common stock, shares issued 655,781,078 393,742,663
Common stock, shares outstanding 655,781,078 393,742,663
Series A Convertible Preferred Stock [Member]    
Preferred stock, par value $ 0.001 $ 0.001
Preferred Stock, Shares Authorized 130,000 130,000
Preferred stock, shares issued 130,000 130,000
Preferred stock, shares outstanding 130,000 130,000
Series B Convertible Preferred Stock [Member]    
Preferred stock, par value $ 0.001 $ 0.001
Preferred Stock, Shares Authorized 870,000 870,000
Preferred stock, shares issued 820,800 840,000
Preferred stock, shares outstanding 820,800 840,000
Series C Convertible Preferred Stock [Member]    
Preferred stock, par value $ 0.001 $ 0.001
Preferred stock, shares issued 195 0
Preferred stock, shares outstanding 195 0
Series D Convertible Preferred Stock [Member]    
Preferred stock, par value $ 0.001 $ 0.001
Preferred Stock, Shares Authorized 200  
Preferred stock, shares issued 192 0
Preferred stock, shares outstanding 192 0