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Allowance for Doubtful Accounts - Allowance for Doubtful Accounts (Detail) - USD ($)
12 Months Ended
Nov. 30, 2016
Nov. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Beginning Balance $ 2,067,130 $ 1,976,966
Bad Debt Expense 630,113 699,682
Write-offs (791,434) (995,716)
Recoveries 373,053 386,198
Ending Balance $ 2,278,862 $ 2,067,130