Note 7 - Goodwill and Other Acquired Intangible Assets, Net Schedule of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended					12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Line Items]
Impairment of goodwill	$ (4,828)	$ 0	$ 0	$ 0		$ (4,828)	$ 0	$ (184,374)
Mortgage and Real Estate Services Segment
Goodwill [Line Items]
Beginning Balance, Goodwill, Gross				200,561		200,561	197,391
Beginning Balance, Accumulated Impairment Loss				(186,469)		(186,469)	(186,469)
Beginning Balance, Goodwill, Net				$ 14,092		14,092	10,922
Goodwill, Acquired During Period						538	3,170
Impairment of goodwill					$ (184,400)	(4,828)	0
Ending Balance, Goodwill, Gross	201,099					201,099	200,561	197,391
Ending Balance, Accumulated Impairment Loss	(191,297)					(191,297)	(186,469)	(186,469)
Beginning Balance, Goodwill, Net	$ 9,802					9,802	$ 14,092	$ 10,922
Technology | Mortgage and Real Estate Services Segment
Goodwill [Line Items]
Finite-Lived Intangible Assets, Period Increase (Decrease)						$ 500