Annual report pursuant to Section 13 and 15(d)

Concentration of Risk - Summary of Customers Accounted for More than Five Percent of Net Sales (Details)

v3.10.0.1
Concentration of Risk - Summary of Customers Accounted for More than Five Percent of Net Sales (Details)
12 Months Ended
Nov. 30, 2018
Nov. 30, 2017
Walmart    
Concentration Risk [Line Items]    
Percentage of Company's net saves accounted by customer 41.50% 36.30%
Walgreens    
Concentration Risk [Line Items]    
Percentage of Company's net saves accounted by customer 16.30% 13.40%
Target    
Concentration Risk [Line Items]    
Percentage of Company's net saves accounted by customer 10.40% 6.90%
CVS    
Concentration Risk [Line Items]    
Percentage of Company's net saves accounted by customer 7.30%  
Foreign Sales    
Concentration Risk [Line Items]    
Percentage of Company's net saves accounted by customer 8.80% 12.40%