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Note 7 - Interest Expense, Net
 9 Months Ended
Sep. 30, 2017
Notes to Financial Statements  
Interest Expense Disclosure [Text Block]
NOTE
 
7
 — INTEREST EXPENSE, NET
 
The components of interest expense are as follows:
 
   
Three Months Ended
September 30,
    
Nine Months Ended
September 30,
  
   
2017
   
2016
   
2017
   
2016
 
                                 
Interest related to sale of tax benefits
   $
1,607
     $
2,565
     $
5,468
     $
6,269
  
Interest expense
    
13,299
      
15,726
      
41,620
      
47,214
  
Less
— amount capitalized
    
(3,214
 )    
(1,154
 )    
(5,933
 )    
(1,922
 )
    $
11,692
     $
17,137
     $
41,155
     $
51,561