Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Per Share data, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Allowance for doubtful accounts receivable $ 3,161 $ 3,375
Amount current replacement cost of inventory costs exceeded book value $ 129,279 $ 129,779
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized 9,988 9,988
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized 60,000 60,000
Common stock, shares issued 23,700 23,630
Common stock, shares outstanding 23,572 23,559
Treasury stock, shares 128 71
Series B Junior Preferred Stock    
Preferred stock, par value (in dollars per share) $ 0 $ 0
Preferred stock, shares authorized 400 400