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Note 7 - Goodwill and Other Intangible Assets, Net Schedule of Goodwill (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2017
USD ($)
Sep. 30, 2017
USD ($)
Jun. 30, 2017
USD ($)
Mar. 31, 2017
USD ($)
Dec. 31, 2017
USD ($)
segment
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Goodwill [Line Items]              
Finite-Lived Intangible Assets, Remaining Amortization Period         15 years    
Goodwill, Impairment Loss $ 0 $ 0 $ (184,374) $ 0 $ (184,374) $ 0 $ 0
Mortgage and Real Estate Services Segment [Member]              
Goodwill [Line Items]              
Impairment of Intangible Assets, Finite-lived     15,800        
Beginning Balance, Goodwill, Gross       197,265 197,265 197,265  
Beginning Balance, Accumulated Impairment Loss       (2,095) (2,095) (2,095)  
Goodwill, Net       $ 195,170 195,170 195,170  
Goodwill, Acquired During Period         126 0  
Goodwill, Impairment Loss     $ (184,400)   (184,374) 0  
Ending Balance, Goodwill, Gross 197,391       197,391 197,265 197,265
Ending Balance, Accumulated Impairment Loss (186,469)       (186,469) (2,095) (2,095)
Goodwill, Net $ 10,922       $ 10,922 $ 195,170 $ 195,170
Number of Reporting Units | segment         1