Annual report pursuant to Section 13 and 15(d)

Allowance for Doubtful Accounts - Allowance for Doubtful Accounts (Detail)

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Allowance for Doubtful Accounts - Allowance for Doubtful Accounts (Detail) - USD ($)
12 Months Ended
Nov. 30, 2021
Nov. 30, 2020
Organization Consolidation And Presentation Of Financial Statements [Abstract]    
Beginning Balance $ 2,781,668 $ 2,584,091
Bad debt expense 536,999 602,965
Write-offs (564,957) (751,848)
Recoveries 324,729 346,460
Ending Balance $ 3,078,439 $ 2,781,668