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Note 4 - Debt (Tables)
3 Months Ended
Mar. 31, 2016
Notes Tables  
Schedule of Debt [Table Text Block]
 
 
As of
 
 
 
March 31,
 
 
December 31,
 
(in thousands)
 
2016
 
 
2015
 
Asset-based revolving credit facility due June 30, 2019
  $ 145,214     $ 145,800  
Industrial revenue bond due April 1, 2018
    2,690       2,690  
Total debt
    147,904       148,490  
Less current amount
    (2,690 )     (2,690 )
Total long-term debt
  $ 145,214     $ 145,800