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Note 14 - Accumulated Other Comprehensive Loss (Tables)
 3 Months Ended
Mar. 31, 2020
Notes Tables  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
   
Three months ended
 
   
March 31,
  
   
2020
    
2019
  
   
(in thousands)
  
Beginning balance
   $
(4,007
 )   $
(3,900
 )
                 
Other comprehensive income (loss) before reclassifications
    
(1,518
 )    
(192
 )
Amounts reclassified from accumulated other comprehensive loss
    
-
      
-
  
                 
Ending Balance
   $
(5,525
 )   $
(4,092
 )