XML 21 R52.htm IDEA: XBRL DOCUMENT v3.20.1
8. SHARE CAPITAL, OPTION BASED PAYMENTS & CONTRIBUTED SURPLUS: Schedule of valuation of stock options granted (Tables)
12 Months Ended
Jan. 31, 2020
Tables/Schedules  
Schedule of valuation of stock options granted

 

 

2020

2019

2018

 

 

 

 

Risk-free interest rate

1.56% 

1.93% 

1.17% 

Expected life of options

1 year 

5 years 

4 years 

Annualized volatility

118.49% 

103.17% 

94.66% 

Dividends

0.00% 

0.00% 

0.00%