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Note 5 - Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2017
Notes Tables  
Schedule of Finite and Indefinite Lived Intangible Assets [Table Text Block]
   
As of December 31, 201
7
  
(in thousands
)
  
Gross Carrying Amoun
t
    
Accumulated Amortizatio
n
    
Impairment
s
    
Intangible Assets, Ne
t
  
                                 
Customer relationships - subject to amortizatio
n
   $
13,332
     $
(5,777
 )   $
-
     $
7,555
  
Trade name - not subject to amortizatio
n
    
15,425
      
-
      
-
      
15,425
  
    $
28,757
     $
(5,777
 )   $
-
     $
22,980
  
   
As of December 31, 201
6
  
(in thousands
)
  
Gross Carrying Amoun
t
    
Accumulated Amortizatio
n
    
Impairment
s
    
Intangible Assets, Ne
t
  
                                 
Customer relationships - subject to amortizatio
n
   $
13,332
     $
(4,888
 )   $
-
     $
8,444
  
Trade name - not subject to amortizatio
n
    
15,425
      
-
      
-
      
15,425
  
    $
28,757
     $
(4,888
 )   $
-
     $
23,869