Quarterly report pursuant to Section 13 or 15(d)

Summary of significant accounting policies (Details)

v3.19.2
Summary of significant accounting policies (Details) - shares
3 Months Ended
Feb. 28, 2019
Feb. 28, 2018
Total potentially dilutive shares 9,726,938 3,390,413
Warrant [Member]    
Total potentially dilutive shares 3,511,296 2,570,413
Stock Option [Member]    
Total potentially dilutive shares 1,475,829 820,000
Senior Secured Convertible Notes [Member]    
Total potentially dilutive shares 4,739,813