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Allowance For Doubtful Accounts For Trade Accounts Receivable (Details) (USD $)
6 Months Ended
Apr. 30, 2013
Apr. 30, 2012
Allowance For Doubtful Accounts For Trade Accounts Receivable [Abstract]    
Balance at beginning of period $ 92,148 $ 145,616
Bad debt expense (recovery) (17,756) 13,947
Losses charged to allowance   (30,411)
Recoveries added to allowance 387  
Balance at ending of period $ 74,779 $ 129,152