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Note 14 - Stockholders' Equity (Tables)
12 Months Ended
Nov. 30, 2021
Notes Tables  
Schedule of Warrants Valuation Assumptions [Table Text Block]
 

2020

 

Risk free rate

 0.351.57%

 

Expected dividends

  0% 

 

Expected volatility

 98.28109.93%

 

Expected life (in years)

 3.543.77 

Market price of the Company's common stock on date of grant

  $2.50  

Exercise price

  $2.50  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
      

Weighted-Average

 
  

Number of

  

Exercise

 
  

Warrants

  Price 
         

Outstanding, November 30, 2019

  4,578,722   2.20 

Granted

  214,684   2.50 

Exercised

  (4,207,667

)

  (2.10

)

Outstanding, November 30, 2020

  585,739   2.40 

Granted

      

Exercised

  (585,739

)

  (2.40

)

Outstanding, November 30, 2021

      
         

Exercisable, November 30, 2021

      

Exercisable, November 30, 2020

  585,739   2.40 
  

2021

  

2020

 
  

(years)

  

(years)

 

Total outstanding warrants

     2.82 

Total exercisable warrants

     2.82