Quarterly report pursuant to Section 13 or 15(d)

Stockholders??? Equity (Details) - Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

v3.21.4
Stockholders’ Equity (Details) - Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range - $ / shares
 6 Months Ended 12 Months Ended
May 31, 2020
Nov. 30, 2021
May 31, 2021
Jul. 17, 2021
Mar. 31, 2021
May 30, 2020
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]            
Exercise Price   $ 0.4125   $ 0.4 $ 1.1  
Number of warrants outstanding (in Shares)   6,625,868 53,997,645     54,835,145
Weighted average remaining contractual life   6 months 14 days        
Weighted average exercise price of outstanding warrants $ 0.53 $ 0.09 $ 0.5      
Number of warrants exercisable (in Shares)   6,625,868        
Weighted average exercise price of exercisable warrants   $ 0.5        
Warrants Exercisable at $0.41 [Member]            
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]            
Exercise Price   $ 0.41        
Number of warrants outstanding (in Shares)   484,493        
Weighted average remaining contractual life   1 year 21 days        
Weighted average exercise price of outstanding warrants   $ 0.41        
Number of warrants exercisable (in Shares)   484,493        
Weighted average exercise price of exercisable warrants   $ 0.41        
Warrants Exercisable at $0.50 [Member]            
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]            
Exercise Price   $ 0.5        
Number of warrants outstanding (in Shares)   2,736,500        
Weighted average remaining contractual life   1 month 9 days        
Weighted average exercise price of outstanding warrants   $ 0.5        
Number of warrants exercisable (in Shares)   2,736,500        
Weighted average exercise price of exercisable warrants   $ 0.5        
Warrant Exercisable at $0.60 [Member]            
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]            
Exercise Price   $ 0.6        
Number of warrants outstanding (in Shares)   3,125,000        
Weighted average remaining contractual life   10 months 13 days        
Weighted average exercise price of outstanding warrants   $ 0.6        
Number of warrants exercisable (in Shares)   3,125,000        
Weighted average exercise price of exercisable warrants   $ 0.6        
Warrant Exercisable at $1.10 [Member]            
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]            
Exercise Price   $ 1.1        
Number of warrants outstanding (in Shares)   279,875        
Weighted average remaining contractual life   25 days        
Weighted average exercise price of outstanding warrants   $ 1.1        
Number of warrants exercisable (in Shares)   279,875        
Weighted average exercise price of exercisable warrants   $ 1.1