Note 3 - Business Acquisition (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Purchase Price Allocation [Table Text Block]

Cash consideration	$	143,000
Working capital adjustment		3,361
Less: Cash acquired		(1,090	)
Purchase price, net of cash acquired	$	145,271
Current assets, net of cash acquired	$	22,638
Property and equipment		2,273
Other noncurrent assets		47
Current liabilities		(13,851	)
Goodwill and other intangible assets		134,164
Total purchase price allocation	$	145,271

Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]

			Weighted average amortization life (in years)
Customer relationships	$	12,700		8.5
Contractual backlog		6,700		6.5
Trade name		600		1.5
Goodwill		114,164		-
Total goodwill and other intangible assets	$	134,164

Business Acquisition, Pro Forma Information [Table Text Block]

	Year Ended December 31,
	2011		2010
Pro forma revenue	$	376,164	$	362,536
Pro forma operating income	$	32,770	$	24,110
Pro forma income from continuing operations	$	12,304	$	7,621
Pro forma net income	$	12,304	$	8,013
Pro forma earnings per share:
Pro forma income from continuing operations:
Basic	$	1.22	$	0.77
Diluted	$	1.20	$	0.76
Pro forma net income:
Basic	$	1.22	$	0.81
Diluted	$	1.20	$	0.80