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Note 10 - Accumulated Other Comprehensive Loss (Tables)
 3 Months Ended
Mar. 31, 2018
Notes Tables  
Schedule of Changes in Accumulated Other Comprehensive Income Loss [Table Text Block]
   
Pension
Liability
Adjustment
    
Unrealized Gain
(Loss) on Cash
Flow Hedges
    
Total
  
Balance, December 31, 2017
   $
(1,436
 )   $
(9
 )   $
(1,445
 )
                         
Other comprehensive income before reclassifications
    
24
      
23
      
47
  
Amounts reclassified from Accumulated other comprehensive loss
    
-
      
2
      
2
  
Net current period adjustments to Other comprehensive income
    
24
      
25
      
49
  
                         
Balance, March 31, 2018
   $
(1,412
 )   $
16
     $
(1,396
 )
   
Pension
Liability
Adjustment
    
Unrealized Gain
on Cash Flow
Hedges
    
Total
  
Balance, December 31, 2016
   $
(1,493
 )   $
10
     $
(1,483
 )
                         
Other comprehensive income (loss) before reclassifications
    
25
      
(12
 )    
13
  
Amounts reclassified from Accumulated other comprehensive loss
    
77
      
5
      
82
  
Net current period adjustments to Other comprehensive income
    
102
      
(7
 )    
95
  
                         
Balance, March 31, 2017
   $
(1,391
 )   $
3
     $
(1,388
 )
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
   
Three Months Ended March 31,
      
   
2018
    
2017
      
Details about Accumulated Other
Comprehensive Loss Components
  
Amount reclassified from
Accumulated Other
Comprehensive Loss
  
Affected line item in the
Condensed Consolidated
Statements of Operations
  
                     
Pension liability adjustment:
                    
Net periodic pension cost:
                    
Service cost
   $
-
     $
(3
 )
Cost of sales
  
Non-service cost
    
-
      
(78
 )
Other income (loss)
  
Associated income tax benefit
    
-
      
4
  
Income tax benefit
  
     
-
      
(77
 )
Net of tax
  
                     
Unrealized loss on cash flow hedges:
                    
Loss on cash flow hedges
    
(3
 )    
(8
 )
Net sales
  
Associated income tax benefit
    
1
      
3
  
Income tax benefit
  
     
(2
 )    
(5
 )
Net of tax
  
                     
Total reclassifications for the period
   $
(2
 )   $
(82
 )