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Note 11 - Other Comprehensive Loss ("OCL") (Tables)
 3 Months Ended
Mar. 31, 2017
Notes Tables  
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
Details about OCL C
omponents
 
Amount Reclassified
from OC
L
for the
three months
ended
March 31, 201
7
  
Affected Line Item
in the Statement of
Operations
Losses
on cash flow hedges
 
 
 
 
  
 
Commodity derivative contracts
   $
1,193
    
Fuel expense
     
(459
 )  
Income tax benefit
    $
734
    
Net of tax
             
Interest rate swap contracts
   $
131
    
Interest expense
     
(51
 )  
Income tax benefit
    $
80
    
Net of tax