XML 62 R48.htm IDEA: XBRL DOCUMENT v3.21.1
Summary of Significant Accounting Policies and Related Information - Receivables (Details) - Gross trade receivable - Customer concentration risk
12 Months Ended
Feb. 28, 2021
Feb. 29, 2020
Customer One    
Receivables    
Concentration risk percentage 18.00% 18.00%
Customer Two    
Receivables    
Concentration risk percentage 16.00% 14.00%
Customer Three    
Receivables    
Concentration risk percentage 15.00% 13.00%
Five top customers    
Receivables    
Concentration risk percentage 58.00% 54.00%