Note 6 - Goodwill and Other Intangible Assets, Net Schedule of Goodwill (Details) - Mortgage and Real Estate Services Segment [Member] - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Goodwill [Line Items]
Goodwill, Gross, Beginning of Period	$ 197,265	$ 197,265
Goodwill, Acquired During Period	126	0
Goodwill, Gross, End of Period	197,391	197,265
Goodwill, Impaired, Accumulated Impairment Loss, Beginning of Period	(2,095)	(2,095)
Goodwill, Impairment Loss	0	0
Goodwill, Impaired, Accumulated Impairment Loss, End of Period	(2,095)	(2,095)
Goodwill, Net	$ 195,296	$ 195,170	$ 195,170