Quarterly report pursuant to Section 13 or 15(d)

Summary of significant accounting policies - Weighted average dilutive common shares (Details)

v3.20.2
Summary of significant accounting policies - Weighted average dilutive common shares (Details) - shares
3 Months Ended
May 31, 2020
May 31, 2019
Total potentially dilutive shares 1,939,615 464,514
Options [Member]    
Total potentially dilutive shares 43,406 48,792
Senior Secured Convertible Notes [Member]    
Total potentially dilutive shares   308,312
Warrant [Member]    
Total potentially dilutive shares 1,896,209 107,410