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Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)
shares in Thousands, $ in Thousands
Dec. 31, 2017
Jun. 30, 2017
Reserve for doubtful accounts $ 2,946 $ 2,406
Common stock, par value (in dollars per share) $ 1.50 $ 1.50
Common stock, shares authorized (in shares) 60,000,000 60,000,000
Common stock, shares issued (in shares) 27,984,278 27,984,278
Common stock, shares outstanding (in shares) 12,709,238 12,662,661
Treasury shares, shares (in shares) 15,275,040 15,321,617