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Note 14 - Accumulated Other Comprehensive Loss (Tables)
 9 Months Ended
Sep. 30, 2019
Notes Tables  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
   
Nine months ended
 
   
September 30,
 
   
2019
    
2018
  
   
(in thousands)
  
Beginning balance
   $
(3,900
 )   $
(2,289
 )
                 
Other comprehensive income (loss) before reclassifications
    
(994
 )    
(1,193
 )
Amounts reclassified from accumulated other comprehensive loss
    
-
      
-
  
                 
Ending Balance
   $
(4,894
 )   $
(3,482
 )