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Note 20 - Plant Consolidation (Tables)
12 Months Ended
Dec. 31, 2018
Notes Tables  
Restructuring and Related Costs [Table Text Block]
 
 
2017
 
2016
 
Restructuring Costs
 
Massachusetts
 
 
 
 
 
 
 
Relocation
 
$
63
 
 
$
420
 
 
 
 
 
 
 
 
 
 
 
 
Total restructuring costs
 
$
63
 
 
$
420