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Note 6 - Goodwill and Other Intangible Assets, Net Schedule of Goodwill (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Dec. 31, 2017
Dec. 31, 2016
Goodwill [Roll Forward]            
Goodwill, Impairment Loss $ 0 $ (184,374) $ 0 $ (184,374)    
Mortgage and Real Estate Services Segment [Member]            
Goodwill [Roll Forward]            
Goodwill, Gross, Beginning of Period     197,391 197,265 $ 197,265  
Goodwill, Acquired During Period     0   126  
Goodwill, Gross, End of Period 197,391   197,391   197,391  
Goodwill, Impaired, Accumulated Impairment Loss, Beginning of Period     (186,469) $ (2,095) (2,095)  
Goodwill, Impairment Loss     0   (184,374)  
Goodwill, Impaired, Accumulated Impairment Loss, End of Period (186,469)   (186,469)   (186,469)  
Goodwill, Net $ 10,922   $ 10,922   $ 10,922 $ 195,170