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Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
Jul. 31, 2012
Oct. 31, 2011
Condensed Consolidated Balance Sheets [Abstract]    
Trade accounts receivable, allowance for doubtful accounts $ 102,081 $ 145,616
Preferred stock, no par value      
Preferred stock, shares authorized 1,000,000 1,000,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, no par value      
Common stock, shares authorized 50,000,000 50,000,000
Common stock, shares issued 6,486,100 6,287,761
Common stock, shares outstanding 6,486,100 6,287,761