CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income	$ 10,654	$ 15,785
Adjustments to reconcile income to net cash provided by operating activities:
Depreciation and amortization	1,475	1,366
Provision for uncollectible accounts	684	1,931
Stock-based compensation	730	871
Deferred income taxes	2,567	1,090
Net cash provided by operating activities before increase (decrease) in operating capital	16,110	21,043
Decrease (increase) in:
Accounts receivable	115	(8,144)
Prepaid expenses and other current assets	386	(4)
Other assets	115	(1)
(Decrease) increase in:
Accounts payable and accrued expenses	(2,984)	932
Net cash provided by operating activities	13,742	13,826
Cash flows from investing activities:
Capital expenditures	(1,104)	(1,185)
Acquisitions, net of cash acquired	(4,249)	(1)
Net cash used in investing activities	(5,353)	(1,186)
Cash flows from financing activities:
Proceeds from exercise of stock options	292	381
Purchase of common stock in connection with share awards	(428)	(628)
Tax benefit from share awards	1,577	1,258
Principal payments on capital leases and notes payable	(1,595)	(1,688)
Net cash used in financing activities	(154)	(677)
Net increase in cash and cash equivalents	8,235	11,963
Cash and cash equivalents at beginning of period	47,943	19,389
Cash and cash equivalents at end of period	56,178	31,352
Summary of non-cash investing and financing activities:
Settlement of Directors Deferred Compensation Plan	501
Acquisitions funded by notes payable	$ 1,000