Note 13 - Segment and Geographical Information (Tables)

3 Months Ended

Mar. 31, 2015

Segment Reporting [Abstract]

Revenue from External Customers by Products and Services [Table Text Block]

Revenues:	For the three months ended March 31,
	2014		2015
IME and other related services (1)	$	154,540	$	167,345
Peer and bill reviews, Medicare compliance services and case management services (1)		18,488		28,971
Total revenues	$	173,028	$	196,316

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

	United						United
	States			Canada			Kingdom			Australia			Total
Three months ended March 31, 2014
Revenues	$	106,049		$	7,507		$	42,053		$	17,419		$	173,028
Segment profit		15,954			1,098			7,081			3,877			28,010
Depreciation and amortization expense		7,720			811			3,175			2,636			14,342
Capital expenditures		(402	)		—			(290	)		(20	)		(712	)
Total assets (3)		488,362			28,293			230,597			100,373			847,625
Long-lived assets (3)		403,354			21,169			105,373			88,856			618,752
Three months ended March 31, 2015
Revenues	$	121,718		$	7,949		$	47,444		$	19,205		$	196,316
Segment profit		19,522			634			7,699			4,097			31,952
Depreciation and amortization expense		9,411			582			2,383			2,472			14,848
Capital expenditures		(1,670	)		(114	)		(189	)		(256	)		(2,229	)
Total assets (3)		602,005			22,343			236,186			83,228			943,762
Long-lived assets (3)		471,040			15,613			92,703			68,227			647,583

Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]

	For the three months ended March 31,
	2014			2015
Segment Profit		28,010			31,952
Depreciation and amortization		(14,342	)		(14,848	)
Share-based compensation expense		(5,353	)		(6,136	)
Acquisition related transaction costs		(1,192	)		382
Other expenses		—			(210	)
Income from operations	$	7,123		$	11,140