Annual report pursuant to Section 13 and 15(d)

Consolidated Statements Of Cash Flows (Parenthetical)

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Consolidated Statements Of Cash Flows (Parenthetical) (USD $)
12 Months Ended
Dec. 31, 2010
Dec. 31, 2009
Dec. 31, 2010
2008 Acquisition [Member]
Dec. 31, 2009
2009 Acquisition [Member]
Dec. 31, 2010
2010 Acquisition [Member]
Dec. 31, 2011
2011 Acquisition [Member]
Dec. 31, 2009
Southeast Louisiana Home Care LLC [Member]
Percentage ownership interest transfer           26.32%  
Additional paid in capital           $ 206,000  
Additional noncontrolling interest           294,000  
Noncontrolling interest related to the acquisitions       7,100,000 950,000 1,300,000  
Unrecognized tax benefit           3,400,000  
Treasury shares obtained for tax payments on stock vesting           1,200,000  
Issuance of common stock as settlement of contingent consideration, value     950,000   600,000    
Issuance of common stock as settlement of contingent consideration, shares     29,988   20,162    
Acquisition of affiliate in exchange for cash and noncontrolling interest       7,500,000      
Treasury shares for tax payments on stock vesting $ 940,000 $ 441,000          
Business acquisition, percentage acquired             75.00%