QUARTERLY FINANCIAL DATA - (UNAUDITED) (Tables)

12 Months Ended

Dec. 31, 2012

QUARTERLY FINANCIAL DATA - (UNAUDITED)

Summary of quarterly financial data

	2012								2011
	Dec. 31		Sept. 30		Jun. 30		Mar. 31		Dec. 31		Sept. 30		Jun. 30		Mar. 31
Net service revenues	$	86,554	$	85,128	$	86,892	$	89,950	$	89,331	$	86,207	$	81,718	$	82,596
Gross margin	41,303		40,610		41,596		44,191		44,205		42,864		42,106		43,612
Net income	$	3,704	$	4,099	$	4,549	$	4,932	$	5,305	$	4,842	$	4,950	$	5,705
Average shares outstanding
Basic	9,280		9,256		9,255		9,268		9,296		9,296		9,284		9,205
Diluted	9,313		9,315		9,315		9,334		9,328		9,346		9,376		9,329
Net income per share
Basic	$	0.40	$	0.44	$	0.49	$	0.53	$	0.57	$	0.52	$	0.53	$	0.62
Diluted	$	0.40	$	0.44	$	0.49	$	0.53	$	0.57	$	0.52	$	0.53	$	0.61