XML 53 R43.htm IDEA: XBRL DOCUMENT v3.21.2
Cash, Cash Equivalents and Investments - Fair Value of Debt Securities by Contractual Maturity (Details) - USD ($)
$ in Thousands
Aug. 31, 2021
Nov. 30, 2020
Investments and Cash [Abstract]    
Due in one year or less $ 3,021 $ 5,998
Due after one year 761 2,007
Total $ 3,782 $ 8,005