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Note 16 - Accumulated Other Comprehensive Loss (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
 
 
December 31,
 
 
 
2016
 
 
2015
 
Pension liability adjustment, net of income tax
benefit of $886 and $966
   $
(1,493
 )   $
(1,624
 )
Deferred gain on cash flow derivatives, net of income tax expense of $6 and $49
    
10
     
86
 
Total
  $
(1,483
 )   $
(1,538
 )
Schedule of Changes in Accumulated Other Comprehensive Income Loss [Table Text Block]
 
 
Defined Benefit
Pension Items
 
 
Gains (Losses) on
Cash Flow Hedges
 
 
Total
 
                         
Balance, December 31, 2014
   $
(1,862
 )   $
29
    $
(1,833
 )
Other comprehensive income before reclassifications
    
17
     
150
     
167
 
Amounts reclassified from Accumulated other comprehensive loss
    
221
     
(93
 )    
128
 
Net current period adjustments to Other comprehensive income (loss)
    
238
     
57
     
295
 
Balance, December 31, 2015
    
(1,624
 )    
86
     
(1,538
 )
Other comprehensive loss before reclassifications
    
(125
 )    
(48
 )    
(173
 )
Amounts reclassified from Accumulated other comprehensive loss
    
256
     
(28
 )    
228
 
Net current period adjustments to Other comprehensive income (loss)
    
131
     
(76
 )    
55
 
Balance, December 31, 2016
   $
(1,493
 )   $
10
    $
(1,483
 )
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
 
 
Year Ended December 31,
 
 
 
 
2016
 
 
2015
 
 
2014
 
 
Details about Accumulated Other Comprehensive Income (Loss) Components
 
Amount reclassified from Accumulated Other Comprehensive Loss
 
Affected line item in the Consolidated Statements of Operations
                           
Defined benefit pension items:
                          
Net periodic pension cost
   $
(392
 )   $
(352
 )   $
(182
 )
Cost of sales
Associated income tax benefit
    
136
     
131
     
68
 
Income tax expense
     
(256
 )    
(221
 )    
(114
 )
Net of tax
Deferred gain on cash flow derivatives:
                          
Gain on cash flow derivatives
    
45
     
147
     
6
 
Net sales
Hedge ineffectiveness
   
-
     
2
     
(3
 )
Net sales
Associated income tax expense
   
(17
 )    
(56
 )    
(1
 )
Income tax expense
     
28
     
93
     
2
 
Net of tax
Total reclassifications for the period
  $
(228
 )   $
(128
 )   $
(112
 )