Condensed Consolidated Statements Of Operations And Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Condensed Consolidated Statements Of Operations And Comprehensive Income [Abstract]
Revenues	$ 36,138	$ 32,282
Operating costs and expenses
Medical professional and license fees	8,682	7,983
Direct costs of services	11,911	11,020
General and administrative expenses	3,706	3,456
Marketing and advertising	6,851	6,496
Depreciation	1,312	1,454
Restructuring charges		56
Total operating cost	32,462	30,465
Gain on sale of assets	78	163
Operating income	3,754	1,980
Net investment income and other	116	80
Income before taxes	3,870	2,060
Income tax expense	24	41
Net income	3,846	2,019
Earnings per common share
Basic	$ 0.20	$ 0.11
Diluted	$ 0.20	$ 0.11
Weighted average shares outstanding
Basic	18,895	18,743
Diluted	19,090	18,884
Comprehensive income	$ 3,936	$ 2,158