XML 59 R45.htm IDEA: XBRL DOCUMENT v3.21.2
Summary of Significant Accounting Policies (Intangible Assets) (Details)
12 Months Ended
Oct. 31, 2021
Minimum  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets estimated useful lives 1 year
Maximum  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets estimated useful lives 15 years