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Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
Oct. 31, 2013
Oct. 31, 2012
Statement of Financial Position [Abstract]    
Trade accounts receivable, allowance for doubtful accounts $ 74,073 $ 92,148
Preferred stock, no par value (usd per share)      
Preferred stock, shares authorized (shares) 1,000,000 1,000,000
Preferred stock, shares issued (shares) 0 0
Preferred stock, shares outstanding (shares) 0 0
Common stock, no par value (usd per share)      
Common stock, shares authorized (shares) 50,000,000 50,000,000
Common stock, shares issued (shares) 6,570,734 6,411,592
Common stock, shares outstanding (shares) 6,570,734 6,411,592