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Note 21 - Discontinued Operations (Tables)
 12 Months Ended
Dec. 31, 2017
Notes Tables  
Disposal Groups, Including Discontinued Operations [Table Text Block]
   
2017
    
2016
    
2015
  
                         
Pre-tax (loss)/income from discontinued operations
   $
(2,020
 )   $
(8,777
 )   $
63
  
Income tax benefit/(expense)
    
706
      
3,130
      
(22
 )
(Loss)/income from discontinued operations, net of tax
   $
(1,314
 )   $
(5,647
 )   $
41