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Note 4 - Debt (Tables)
3 Months Ended
Mar. 31, 2017
Notes Tables  
Schedule of Debt [Table Text Block]
 
 
As of
 
 
 
March 31,
 
 
December 31,
 
(in thousands)
 
2017
 
 
2016
 
Asset-based revolving credit facility due June 30, 2019
  $
192,971
    $
164,599
 
Industrial revenue bond due April 1, 2018
   
1,825
     
1,825
 
Total debt
   
194,796
     
166,424
 
Less current amount
   
(1,825
)    
(1,825
)
Total long-term debt
  $
192,971
    $
164,599