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CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
OPERATING ACTIVITIES    
Net income including non-controlling interests $ 15,268 $ 15,743
Adjustments to reconcile net income including non-controlling interests to net cash provided by operating activities:    
Depreciation and amortization 3,674 2,825
Provision for doubtful accounts 2,052 2,004
Equity-based awards compensation expense 2,206 1,593
(Gain) loss on sale or abandonment of assets, net (13) 34
Excess tax benefit from shared-based compensation (430) (215)
Deferred income tax 2,130 2,422
Write-off of goodwill - closed clinic 111 0
Changes in operating assets and liabilities:    
Increase in patient accounts receivable (2,880) (4,442)
Decrease (increase) in accounts receivable - other 165 (80)
(Increase) decrease in other assets (13) 1,540
Decrease in accounts payable and accrued expenses (3,958) (774)
Increase in other Long term liabilities 927 404
Net cash provided by operating activities 19,239 21,054
INVESTING ACTIVITIES    
Purchase of fixed assets (2,873) (2,132)
Purchase of businesses, net of cash acquired (14,467) (10,750)
Acquisitions of non-controlling interests (968) (4,945)
Proceeds on sale of business and fixed assets, net 72 38
Net cash used in investing activities (18,236) (17,789)
FINANCING ACTIVITIES    
Distributions to non-controlling interests (including redeemable non-controlling interests) (4,906) (4,982)
Cash dividends to shareholders (3,723) (2,932)
Proceeds from revolving line of credit 51,000 77,000
Payments on revolving line of credit (44,500) (72,000)
Payment of notes payable (608) (575)
Tax benefit from share-based compensation 430 215
Other 5 45
Net cash used in financing activities (2,302) (3,229)
Net (decrease) increase in cash and cash equivalents (1,299) 36
Cash and cash equivalents - beginning of period 14,271 12,898
Cash - end of period 12,972 12,934
Cash paid during the period for:    
Income taxes 3,835 3,235
Interest 460 657
Non-cash investing and financing transactions during the period:    
Purchase of business - seller financing portion 1,350 400
Revaluation of redeemable non-controlling interests $ 627 $ 1,841