CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income	$ 3,247	$ 4,932
Adjustments to reconcile income to net cash provided by operating activities:
Depreciation and amortization	635	622
Provision for uncollectible accounts	1,118	1,020
Stock-based compensation	287	361
Deferred income taxes	90	222
Net cash provided by operating activities	5,377	7,157
Decrease (increase) in:
Accounts receivable	(562)	(4,226)
Prepaid expenses and other current assets	1,625	(198)
Other assets	52	34
Decrease in:
Accounts payable and accrued expenses	2,714	3,236
Net cash provided by operating activities	9,206	6,003
Cash flows from investing activities:
Capital expenditures	(690)	(496)
Net cash used in investing activities	(690)	(496)
Cash flows from financing activities:
Purchase of common stock in connection with share awards		(1,821)
Tax impact of share awards		(87)
Net cash used in financing activities		(1,908)
Net change in cash and cash equivalents	8,516	3,599
Cash and cash equivalents at beginning of period	26,120	33,693
Cash and cash equivalents at end of period	$ 34,636	$ 37,292