Note 6 - Goodwill and Other Intangible Assets, Net Schedule of Goodwill (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended
	Oct. 31, 2015	Mar. 31, 2015	Sep. 30, 2016	Dec. 31, 2015	Dec. 31, 2014
Mortgage and Real Estate Services Segment [Member]
Goodwill [Line Items]
Goodwill, Gross, Beginning of Period		$ 194,027	$ 197,265	$ 194,027
Goodwill, Acquired During Period			0	3,238
Goodwill, Gross, End of Period			197,265	197,265
Goodwill, Impaired, Accumulated Impairment Loss, Beginning of Period		(2,095)	(2,095)	(2,095)
Goodwill, Impairment Loss			0	0
Goodwill, Impaired, Accumulated Impairment Loss, End of Period			(2,095)	(2,095)
Goodwill, Net			$ 195,170	$ 195,170	$ 191,932
Clayton Holdings, LLC [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period	$ 800	$ 2,400