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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
OPERATING ACTIVITIES    
Net income including noncontrolling interests $ 12,983 $ 14,126
Adjustments to reconcile net income including noncontrolling interests to net cash provided by operating activities:    
Depreciation and amortization 2,730 2,646
Provision for doubtful accounts 2,282 2,397
Equity-based awards compensation expense 1,370 1,043
Loss on sale or abandonment of assets, net 84 83
Deferred income tax (796) 1,046
Other 33  
Changes in operating assets and liabilities:    
Increase in patient accounts receivable (2,542) (1,613)
Decrease (increase) in accounts receivable - other 4 (400)
Decrease in other assets 3,867 301
Increase (decrease) in accounts payable and accrued expenses 682 (693)
Increase in other liabilities 19 31
Net cash provided by operating activities 20,716 18,967
INVESTING ACTIVITIES    
Purchase of fixed assets (2,394) (1,943)
Purchase of businesses, net of cash acquired (9,998) (7,180)
Acquisitions of noncontrolling interests, net of sales (1,064) (726)
Net proceeds on sale of fixed assets and business 15 28
Net cash used in investing activities (13,441) (9,821)
FINANCING ACTIVITIES    
Distributions to noncontrolling interests (4,410) (4,751)
Cash dividends to shareholders (2,418) (2,117)
Proceeds from revolving line of credit 62,550 32,400
Payments on revolving line of credit (64,200) (35,900)
Payment of notes payable (234) (184)
Excess tax benefit from stock options exercised 33 184
Other 20 50
Net cash used in financing activities (8,659) (10,318)
Net decrease in cash (1,384) (1,172)
Cash - beginning of period 11,671 9,983
Cash - end of period 10,287 8,811
Cash paid during the period for:    
Income taxes 1,999 3,886
Interest 237 422
Non-cash investing and financing transactions during the period:    
Purchase of business - seller financing portion $ 800 $ 350