CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
CONSOLIDATED STATEMENTS OF INCOME
Net service revenues	$ 86,858	$ 89,950
Cost of service revenues (excluding depreciation and amortization)	46,320	45,759
Gross margin	40,538	44,191
General and administrative expenses:
Salaries and benefits	24,757	25,289
Other	10,617	10,904
Total general and administrative expenses	35,374	36,193
Operating income	5,164	7,998
Interest expense, net	(18)	(38)
Income before income taxes	5,146	7,960
Income tax expense	(1,899)	(3,028)
Net income	$ 3,247	$ 4,932
Per share amounts-basic:
Average shares outstanding (in shares)	9,254	9,268
Net income (in dollars per share)	$ 0.35	$ 0.53
Per share amounts-diluted:
Average shares outstanding (in shares)	9,338	9,334
Net income (in dollars per share)	$ 0.35	$ 0.53