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Note 3 - Exit and Disposal Activities (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Restructuring and Related Costs [Table Text Block]
 
 
Total
Program
 
 
Recognized 
as of 
December 31, 2016
 
 
Remaining 
Costs to be
 
Recognized
 
Severance and benefit-related costs
   $
1,265
     $
427
     $
838
  
Asset impairments
    
188
      
188
      
0
  
Equipment relocation costs
    
2,531
      
0
      
2,531
  
Other
    
530
      
30
      
500
  
    $
4,514
     $
645
     $
3,869
  
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]
 
 
Accrued
 
 
 
 
 
Cash
 
 
Accrued
 
 
 
Balance at
 
 
 
 
 
Payments
 
 
Balance at
 
 
 
Dec. 31,
 
 
2016
 
 
or Asset
 
 
Dec. 31,
 
 
 
2015
 
 
Charge
 
 
Write-Offs
 
 
2016
 
Severance and benefit related costs
   $
0
     $
427
     $
0
     $
427
  
Asset impairments
    
0
      
188
      
(188
 )    
0
  
Equipment relocation costs
    
0
      
0
      
0
      
0
  
Other
    
0
      
30
      
(30
 )    
0
  
    $
0
     $
645
     $
(218
 )   $
427
  
Disposal Groups, Including Discontinued Operations [Table Text Block]
 
 
December 31,
 
 
 
2016
 
Machinery, equipment, furniture and fixtures
   $
6,673
  
Accumulated depreciation
    
(5,841
 )
Property, plant and equipment, net
   $
832