Note 6 - Goodwill and Other Intangible Assets, Net Schedule of Finite-Lived Intangible Assets Including Impairment (Details) - USD ($) $ in Thousands		3 Months Ended
		Jun. 30, 2017	Mar. 31, 2018	Dec. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net			$ 50,543
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	[1]			$ 82,530
Finite-Lived Intangible Assets, Accumulated Amortization and Impairment	[1]			(41,596)
Finite-Lived Intangible Assets, Net	[1]			40,934
Technology-Based Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	[2]			15,250
Finite-Lived Intangible Assets, Accumulated Amortization and Impairment	[2]			(8,922)
Finite-Lived Intangible Assets, Net	[2]			6,328
Trademarks and Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross				8,340
Finite-Lived Intangible Assets, Accumulated Amortization and Impairment				(3,003)
Finite-Lived Intangible Assets, Net				5,337
Order or Production Backlog [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross				6,680
Finite-Lived Intangible Assets, Accumulated Amortization and Impairment				(6,006)
Finite-Lived Intangible Assets, Net				674
Noncompete Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross				185
Finite-Lived Intangible Assets, Accumulated Amortization and Impairment				(168)
Finite-Lived Intangible Assets, Net				17
Mortgage and Real Estate Services Segment [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross			112,985	112,985
Finite-Lived Intangible Assets, Accumulated Amortization and Impairment			(62,442)	(59,695)
Finite-Lived Intangible Assets, Net			50,543	$ 53,290
Mortgage and Real Estate Services Segment [Member] | Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived		$ 14,900
Finite-Lived Intangible Assets, Gross	[1]		82,530
Finite-Lived Intangible Assets, Accumulated Amortization and Impairment	[1]		(43,254)
Finite-Lived Intangible Assets, Net	[1]		39,276
Mortgage and Real Estate Services Segment [Member] | Technology-Based Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived		$ 900
Finite-Lived Intangible Assets, Gross	[2]		15,250
Finite-Lived Intangible Assets, Accumulated Amortization and Impairment	[2]		(9,457)
Finite-Lived Intangible Assets, Net	[2]		5,793
Mortgage and Real Estate Services Segment [Member] | Trademarks [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross			8,340
Finite-Lived Intangible Assets, Accumulated Amortization and Impairment			(3,218)
Finite-Lived Intangible Assets, Net			5,122
Mortgage and Real Estate Services Segment [Member] | Order or Production Backlog [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross			6,680
Finite-Lived Intangible Assets, Accumulated Amortization and Impairment			(6,343)
Finite-Lived Intangible Assets, Net			337
Mortgage and Real Estate Services Segment [Member] | Noncompete Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross			185
Finite-Lived Intangible Assets, Accumulated Amortization and Impairment			(170)
Finite-Lived Intangible Assets, Net			$ 15

[1] Includes an impairment charge of $14.9 million in the quarter ended June 30, 2017.

[2] Includes an impairment charge of $0.9 million in the quarter ended June 30, 2017.