Note 3 - Acquisitions (Tables)

12 Months Ended

Dec. 31, 2015

Note 3 - Acquisitions (Tables) [Line Items]

Business Acquisition, Pro Forma Information [Table Text Block]

	Years ended December 31,
	2014		2015
	(In thousands, except per share data)
Pro forma revenues	$	870,427	$	864,826
Pro forma net income		11,405		5,103
Pro forma net income per share – basic	$	0.30	$	0.12
Pro forma net income per share – diluted	$	0.28	$	0.12

Acquisitions 2013 [Member]

Note 3 - Acquisitions (Tables) [Line Items]

Schedule of Preliminary Purchase Price Allocation [Table Text Block]

	Preliminary purchase price allocation December 31, 2013		Adjustments/ reclassifications			Final purchase price allocation December 31, 2014
Equipment and leasehold improvements		130		—			130
Customer relationships		3,141		—			3,141
Tradename		710		—			710
Goodwill		3,024		(309	)		2,715
Assets acquired and liabilities assumed, net		688		(64	)		624
Totals		7,693		(373	)		7,320

2014 Acquisitions [Member]

Note 3 - Acquisitions (Tables) [Line Items]

Schedule of Preliminary Purchase Price Allocation [Table Text Block]

	Preliminary purchase price allocation December 31, 2014			Adjustments/ reclassifications			Final purchase price allocation December 31, 2015
Equipment and leasehold improvements		886			—			886
Customer relationships		50,216			—			50,216
Tradename		10,342			—			10,342
Covenants not to compete		590			—			590
Technology		1,870			—			1,870
Goodwill		136,034			470			136,504
Net deferred tax liability associated with step-up in book basis		(9,041	)		—			(9,041	)
Assets acquired and liabilities assumed, net		3,785			(379	)		3,406
Totals		194,682			91			194,773

2015 Acquisitions [Member]

Note 3 - Acquisitions (Tables) [Line Items]

Schedule of Preliminary Purchase Price Allocation [Table Text Block]

	Preliminary purchase price allocation December 31, 2015
Equipment and leasehold improvements	$	1,513
Customer relationships		28,530
Tradename		1,965
Covenants not to compete		182
Goodwill		24,296
Net deferred tax liability associated with step-up in book basis		(18	)
Assets acquired and liabilities assumed, net		18,931
Total	$	75,399