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Note 5 - Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2016
Notes Tables  
Property, Plant and Equipment [Table Text Block]
 
 
December 31,
 
 
 
2016
 
 
2015
 
                 
Land and improvements
  $
22,288
    $
23,903
 
Buildings
   
38,922
     
44,409
 
Machinery and equipment
   
139,189
     
146,704
 
Equipment under capital lease
   
1,126
     
924
 
Construction in progress
   
2,180
     
2,359
 
     
203,705
     
218,299
 
Less accumulated depreciation and amortization
   
(85,604
)    
(86,451
)
Property and equipment, net
  $
118,101
    $
131,848