Note 13 - Segment and Geographical Information (Details) - Revenues by Product Group (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Revenue from External Customer [Line Items]
Revenue	$ 775,615		$ 616,016		$ 521,237
IME and Other Related Services [Member]
Revenue from External Customer [Line Items]
Revenue	674,229	[1]	567,070	[1]	476,847	[1]
Peer and Bill Review Medicare Compliance and Case Management [Member]
Revenue from External Customer [Line Items]
Revenue	$ 101,386	[1]	$ 48,946	[1]	$ 44,390	[1]

[1] Includes the results of certain of the Company's service centers acquired whose revenues are generated substantially through the indicated product group. Outside of this presentation, other product groups are not tracked within the Company's financial systems. Additionally, other related services are not separately captured within the Company's financial systems and have been included with IME services in the above presentation as separate presentation isnot practicable.