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Allowance For Doubtful Accounts For Trade Accounts Receivable (Details) (USD $)
3 Months Ended
Jan. 31, 2013
Jan. 31, 2012
Allowance For Doubtful Accounts For Trade Accounts Receivable [Abstract]    
Balance at beginning of period $ 92,148 $ 145,616
Bad debt recovery (7,095) (8,644)
Losses charged to allowance 387  
Balance at ending of period $ 85,440 $ 136,972