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Accrued Expenses (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Summary of Accrued Expenses
Salaries and related costs	$ 8,941	$ 9,275
Group health insurance claims	991	1,168
Credit balances due to patients and payors	813	793
Other	3,371	2,846
Total	$ 14,116	$ 14,082

Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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