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Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)
Jan. 31, 2016
Oct. 31, 2015
Allowance for doubtful accounts $ 70,086 $ 63,011
Preferred stock, authorized (in shares) 1,000,000 1,000,000
Preferred stock, issued (in shares) 0 0
Preferred stock, outstanding (in shares) 0 0
Preferred stock, no par value (in dollars per share) $ 0 $ 0
Common stock, par value (in dollars per share) $ 0 $ 0
Common stock, shares authorized (in shares) 50,000,000 50,000,000
Common stock, shares issued (in shares) 7,052,763 7,059,548
Common stock, shares outstanding (in shares) 7,052,763 7,059,548