CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Net service revenues	$ 81,721	$ 85,122	$ 164,314	$ 166,434
Cost of service revenues (excluding depreciation and amortization)	39,615	38,294	78,580	75,500
Gross margin	42,106	46,828	85,734	90,934
General and administrative expenses:
Salaries and benefits	23,606	22,848	47,945	45,122
Other	10,172	9,959	19,859	19,245
Total general and administrative expenses	33,778	32,807	67,804	64,367
Operating income	8,328	14,021	17,930	26,567
Interest expense, net	(44)	(61)	(99)	(150)
Income before income taxes	8,284	13,960	17,831	26,417
Income tax expense	(3,334)	(5,618)	(7,177)	(10,632)
Net income	$ 4,950	$ 8,342	$ 10,654	$ 15,785
Per share amounts-basic:
Average shares outstanding (in shares)	9,284	9,110	9,249	9,079
Net income (in dollars per share)	$ 0.53	$ 0.92	$ 1.15	$ 1.74
Per share amounts-diluted:
Average shares outstanding (in shares)	9,377	9,366	9,360	9,354
Net income (in dollars per share)	$ 0.53	$ 0.89	$ 1.14	$ 1.69