Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY

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CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($)
Issued to Officers [Member]
Common Stock [Member]
Issued to Officers [Member]
Additional Paid-in Capital [Member]
Issued to Officers [Member]
Stock Payable [Member]
Issued to Officers [Member]
To Be Issued to Officers [Member]
Stock Payable [Member]
To Be Issued to Officers [Member]
Stock Issued for Settlement [Member]
Common Stock [Member]
Stock Issued for Settlement [Member]
Additional Paid-in Capital [Member]
Stock Issued for Settlement [Member]
Stock To Be Issued [Member]
Stock Payable [Member]
Stock To Be Issued [Member]
Oasis Acquisition [Member]
Common Stock [Member]
Oasis Acquisition [Member]
Additional Paid-in Capital [Member]
Oasis Acquisition [Member]
Issued to Officers [Member]
Common Stock [Member]
Issued to Officers [Member]
Additional Paid-in Capital [Member]
Issued to Officers [Member]
Stock Payable [Member]
Common Stock [Member]
Cashless Exercise Of Warrants [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Special Warrants Issued for Cash [Member]
Additional Paid-in Capital [Member]
Cashless Exercise Of Warrants [Member]
Additional Paid-in Capital [Member]
Warrant Issued Due to Penalty [Member]
Additional Paid-in Capital [Member]
Warrants issued to Placement Agent [Member]
Additional Paid-in Capital [Member]
Special Warrant Issued Due to Penalty [Member]
Additional Paid-in Capital [Member]
Stock Payable [Member]
Retained Earnings [Member]
Special Warrants Issued for Cash [Member]
Warrant Issued Due to Penalty [Member]
Warrants issued to Placement Agent [Member]
Special Warrant Issued Due to Penalty [Member]
Total
Balance at May. 31, 2018                                     $ 5,013           $ 17,628,717 $ 307,584 $ (18,569,094)         $ (627,780)
Balance (in Shares) at May. 31, 2018                                     50,128,972                          
Common stock issued for conversion of debt                                     $ 370           1,295,320             1,295,690
Common stock issued for conversion of debt, Shares (in Shares)                                     3,697,511                          
Common stock issued in connection with Oasis acquisition                       $ 2,206 $ 15,438,970 $ 15,441,176                                    
Common stock issued in connection with Oasis acquisition (in Shares)                       22,058,823                                        
Stock issued for services                                     $ 73           515,240 (25,313)           490,000
Stock issued for services, Shares (in Shares)                                     731,250                          
Common stock issued $ 60 $ 263,940 $ (213,320) $ 50,680 $ 277,833 $ 277,833 $ 5 $ 47,495 $ 47,500                   $ 1,438           5,748,562             5,750,000
Common stock issued (in Shares) 600,000           50,000                       14,375,000                          
Warrants issued                                       $ 9,785,978   $ 941,972 $ 1,413,300 $ 7,142,550 2,369,830     $ 9,785,978 $ 941,972 $ 1,413,300 $ 7,142,550 2,369,830
Common stock issued for exercise of special warrants                                     $ 3,347           (3,347)              
Common stock issued for exercise of special warrants (in Shares)                                     33,463,838                          
Units issued as compensation for offering                                     $ 56           557,279             557,335
Units issued as compensation for offering (in Shares)                                     559,750                          
Cashless exercise of warrant                                   $ 13 $ 2   $ (13)       (2)              
Cashless exercise of warrant (in Shares)                                   129,412 19,551                          
Foreign currency transaction loss on equity offering                                                 403,588             403,588
Discount on notes payable and accrued interest                                                 9,039,096             9,039,096
Reclasification of deritivate upon adoption of ASU 2017-11 | Accounting Standards Update 2017-11 [Member]                                                 1,265,751             1,265,751
Reclasification of deritivate upon adoption of ASU 2017-11                                                               1,265,751
Imputed interest                                                 807             807
Derivative valuation of reset event                                                 35,883             35,883
Net loss                                                     (24,187,649)         (24,187,649)
Balance at Feb. 28, 2019                                     $ 12,583           73,890,916 346,784 (42,756,743)         31,493,540
Balance (in Shares) at Feb. 28, 2019                                     125,814,107                          
Balance at May. 31, 2019                                     $ 12,585           70,758,025 455,095 (46,188,151)         25,037,554
Balance (in Shares) at May. 31, 2019                                     125,839,095                          
Common stock issued for conversion of debt                                     $ 3           25,854             25,857
Common stock issued for conversion of debt, Shares (in Shares)                                     32,319                          
Stock issued for services                   $ 45,000 $ 45,000               $ 10           22,490 (22,500)           $ 22,500
Stock issued for services, Shares (in Shares)                     200,000               100,000                         100,000
Common stock issued                             $ 55 $ 390,445 $ (390,500)                 124,582           $ 124,582
Common stock issued (in Shares)                             550,000                                  
Warrants issued                                                               874,457
Reclasification of deritivate upon adoption of ASU 2017-11                                                               0
Net loss                                                     (3,910,473)         (3,910,473)
Balance at Feb. 29, 2020                                     $ 12,653           $ 71,196,814 $ 211,677 $ (50,098,624)         $ 21,322,520
Balance (in Shares) at Feb. 29, 2020                                     126,521,414