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Note 6 - Exit and Disposal Activities (Tables)
9 Months Ended
Sep. 30, 2018
Notes Tables  
Restructuring and Related Costs [Table Text Block]
   
 
 
 
 
Costs Incurred
   
 
 
 
   
 
 
 
 
Nine Months
   
Total
   
Remaining
 
   
Total
   
Ended
   
Recognized
   
Costs to be
 
   
Program
   
Sept. 30, 2018
   
to date
   
Recognized
 
Severance and benefit related costs
  $
1,350
    $
0
    $
1,350
    $
0
 
Asset impairments
   
188
     
0
     
188
     
0
 
Equipment relocation costs
   
1,804
     
254
     
1,678
     
126
 
Other
   
1,302
     
834
     
877
     
425
 
    $
4,644
    $
1,088
    $
4,093
    $
551
 
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]
   
Accrued
   
 
 
 
 
Cash
   
Accrued
 
   
Balance at
   
 
 
 
 
Payments
   
Balance at
 
   
Dec. 31,
   
2018
   
or Asset
   
Sept. 30,
 
   
2017
   
Charge
   
Write-Offs
   
2018
 
Severance and benefit-related costs
  $
145
    $
0
    $
(145
)   $
0
 
Equipment relocation costs
   
0
     
254
     
(254
)    
0
 
Other
   
0
     
834
     
(834
)    
0
 
    $
145
    $
1,088
    $
(1,233
)   $
0
 
Disposal Groups, Including Discontinued Operations [Table Text Block]
   
September 30,
   
December 31,
 
   
2018
   
2017
 
   
(Unaudited)
   
 
 
 
                 
Machinery, equipment, furniture and fixtures
  $
16,819
    $
28,874
 
Accumulated depreciation
   
(14,803
)    
(25,976
)
Total assets
  $
2,016
    $
2,898