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Note 3 - Allowance for Doubtful Accounts for Trade Accounts Receivable (Details) - Summary of Changes in the Allowance for Doubtful Accounts for Trade Accounts Receivable (USD $)
6 Months Ended
Apr. 30, 2014
Apr. 30, 2013
Summary of Changes in the Allowance for Doubtful Accounts for Trade Accounts Receivable [Abstract]    
Balance at beginning of period $ 74,073 $ 92,148
Bad debt expense (recovery) 12,111 (17,756)
Recoveries added to allowance   387
Balance at end of period $ 86,184 $ 74,779