Note 6 - Goodwill and Other Acquired Intangible Assets, Net Schedule of Other Intangible Assets (Details) - USD ($) $ in Thousands		3 Months Ended
		Sep. 30, 2017	Sep. 30, 2018	Dec. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Other Intangible Assets, Net Carrying Amount			$ 44,785
Mortgage and Real Estate Services Segment
Acquired Finite-Lived Intangible Assets [Line Items]
Other Intangible Assets, Original Acquired Amount			113,448	$ 112,985
Other Intangible Assets, Accumulated Amortization and Impairment			(68,663)	(59,695)
Other Intangible Assets, Net Carrying Amount			44,785	53,290
Mortgage and Real Estate Services Segment | Client relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Other Intangible Assets, Original Acquired Amount	[1]		82,530	82,530
Other Intangible Assets, Accumulated Amortization and Impairment	[1]		(46,569)	(41,596)
Other Intangible Assets, Net Carrying Amount	[1]		35,961	40,934
Impairment charge, Other Intangible Assets		$ 14,900
Mortgage and Real Estate Services Segment | Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Other Intangible Assets, Original Acquired Amount	[2]		15,250	15,250
Other Intangible Assets, Accumulated Amortization and Impairment	[2]		(11,567)	(8,922)
Other Intangible Assets, Net Carrying Amount	[2]		3,683	6,328
Impairment charge, Other Intangible Assets		$ 900
Mortgage and Real Estate Services Segment | Trade name and trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Other Intangible Assets, Original Acquired Amount			8,340	8,340
Other Intangible Assets, Accumulated Amortization and Impairment			(3,649)	(3,003)
Other Intangible Assets, Net Carrying Amount			4,691	5,337
Mortgage and Real Estate Services Segment | Client backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Other Intangible Assets, Original Acquired Amount			6,680	6,680
Other Intangible Assets, Accumulated Amortization and Impairment			(6,680)	(6,006)
Other Intangible Assets, Net Carrying Amount			0	674
Mortgage and Real Estate Services Segment | Non-competition agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Other Intangible Assets, Original Acquired Amount			185	185
Other Intangible Assets, Accumulated Amortization and Impairment			(175)	(168)
Other Intangible Assets, Net Carrying Amount			10	$ 17
Mortgage and Real Estate Services Segment | Licenses
Acquired Finite-Lived Intangible Assets [Line Items]
Other Intangible Assets, Original Acquired Amount			463
Other Intangible Assets, Accumulated Amortization and Impairment			(23)
Other Intangible Assets, Net Carrying Amount			$ 440

[1] Includes a cumulative impairment charge of $14.9 million.

[2] Includes a cumulative impairment charge of $0.9 million.