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Note 6 - Goodwill and Other Assets (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Other Assets [Table Text Block]
(in thousands)
  
2016
    
2015
  
Customer relationships
   $
-
     $
3,490
  
Less: accumulated amortization of intangibles
    
-
      
(3,321
 )
Net intangible assets
    
-
      
169
  
Investment in TEL
    
18,526
      
16,788
  
Other long-term receivables
    
1
      
576
  
Deposits
    
481
      
314
  
Interest rate swap
    
26
      
-
  
Other, net
    
1,070
      
1,984
  
    $
20,104
     $
19,831