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Allowance For Doubtful Accounts For Trade Accounts Receivable - (Summary Of Changes In The Allowance For Doubtful Accounts For Trade Accounts Receivable) (Details) (USD $)
3 Months Ended
Jan. 31, 2014
Jan. 31, 2013
Allowance for Doubtful Accounts Receivable [Roll Forward]    
Balance at beginning of period $ 74,073 $ 92,148
Bad debt recovery (7,255) (7,095)
Losses charged to allowance 0 387
Balance at ending of period $ 66,818 $ 85,440