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Note 5 - Debt (Tables)
3 Months Ended
Mar. 31, 2013
Schedule of Debt [Table Text Block]
   
As of
 
(in thousands)
 
March 31,
2013
   
December 31,
2012
 
Asset-based revolving credit facility due June 30, 2016
  $ 174,955     $ 177,575  
Term loan due June 30, 2016
    55,417       57,604  
Industrial revenue bond due April 1, 2018
    5,125       5,125  
Capital lease
    1,380       1,407  
Total debt
    236,877       241,711  
    Less current amount
    (15,255 )     (15,282 )
Total long-term debt
  $ 221,622     $ 226,429