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Stockholders' Equity (Details) - USD ($)
 9 Months Ended
Nov. 30, 2019
Nov. 30, 2018
Beginning balance, amount $ 2,626,392 $ 10,324,065
Issuance of common shares for cash, amount 39,023,632  
Issuance of shares upon the cashless exercise of stock options, amount 0  
Issuance of shares upon exercise of warrants, amount 143,749 0
Issuance of shares upon settlement of legal matter, amount 0  
Issuance of shares upon conversion of convertible notes, amount 2,689,510  
Ending balance, amount $ 36,316,469 $ 3,301,570
Common Stock    
Beginning balance, shares 33,805,706 33,751,088
Beginning balance, amount $ 3,381 $ 3,376
Issuance of common shares for cash, shares 4,693,567  
Issuance of common shares for cash, amount $ 469  
Issuance of shares upon the cashless exercise of stock options, shares 4,565  
Issuance of shares upon the cashless exercise of stock options, amount $ 1  
Issuance of shares upon exercise of warrants, shares 15,432 18,821
Issuance of shares upon exercise of warrants, amount $ 1 $ 2
Issuance of shares upon settlement of legal matter, shares 150,000  
Issuance of shares upon settlement of legal matter, amount $ 15  
Issuance of shares upon conversion of convertible notes, shares 319,326  
Issuance of shares upon conversion of convertible notes, amount $ 32  
Issuance of shares upon vesting of restricted stock units, shares 243,932 35,797
Issuance of shares upon vesting of restricted stock units, amount $ 24 $ 3
Ending balance, shares 39,232,528 33,805,706
Ending balance, amount $ 3,923 $ 3,381