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Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
Jul. 31, 2011
Oct. 31, 2010
Condensed Consolidated Balance Sheets    
Trade accounts receivable, allowance for doubtful accounts $ 138,351 $ 120,450
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 6,305,738 6,280,173
Common stock, shares outstanding 6,305,738 6,280,173