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Note 6 - Property and Equipment (Tables)
9 Months Ended
Sep. 30, 2020
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
September 30,
   
December 31,
 
   
2020
   
2019
 
Land and land improvements
  $
15,146
    $
14,823
 
Buildings and improvements
   
46,937
     
44,596
 
Machinery and equipment
   
5,287
     
5,005
 
Office furniture and fixtures
   
7,926
     
7,234
 
Vehicles
   
499
     
499
 
Construction in progress
   
169
     
581
 
     
75,964
     
72,738
 
Less accumulated depreciation and amortization
   
(25,491
)    
(23,760
)
Property and equipment, net
  $
50,473
    $
48,978