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Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares
Sep. 30, 2016
Dec. 31, 2015
Common stock, shares authorized (in shares) 25,000,000 25,000,000
Common stock, par value (in dollars per share) $ 1 $ 1
Common stock, shares issued (in shares) 11,649,360 11,649,360
Common stock, shares outstanding (in shares) 11,649,360 11,649,360