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Note 19 - Accumulated Other Comprehensive Loss (Tables)
 12 Months Ended
Dec. 31, 2017
Notes Tables  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
   
Unrealized
    
Unrealized
    
Accumulated Other
  
   
Gains (Losses)
    
(Losses)
    
Comprehensive
  
(Amounts in thousands)
  
On Securities
    
On Derivatives
    
Loss
  
Accumulated other comprehensive loss as of December 31, 2015
   $
1,142
     $
(1,396
 )   $
(254
 )
Accumulated other comprehensive loss as of December 31, 2016
   $
(659
 )   $
—
     $
(659
 )
Accumulated other comprehensive loss as of December 31, 2017
   $
(266
 )   $
—
     $
(266
 )