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Note 4 - Property and Equipment, Net (Tables)
 12 Months Ended
Dec. 31, 2018
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
At December 31,
  
(In thousands)
  
2018
    
2017
  
Land
   $
382
     $
1,205
  
Buildings and improvements
    
4,085
      
8,476
  
Equipment
    
5,740
      
5,716
  
Property and equipment, gross
    
10,207
      
15,397
  
Less accumulated depreciation
    
(4,234
)
    
(4,155
)
Property and equipment, net
   $
5,973
     $
11,242