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Consolidated Balance Sheets (Parentheticals) - USD ($)
shares in Thousands, $ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Inventories, LIFO debit $ 5,337 $ 8,045
Preferred stock, par value (in dollars per share)
Preferred stock, shares authorized (in shares) 5,000 5,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0
Common stock, par value (in dollars per share)
Common stock, shares authorized (in shares) 20,000 20,000
Common stock, shares issued (in shares) 10,989 10,963
Common stock, shares outstanding (in shares) 10,989 10,963
Treasury stock, shares (in shares) 31 57