SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $) In Thousands, unless otherwise specified			12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Medical equipment Minimum	Dec. 31, 2012 Medical equipment Maximum	Dec. 31, 2012 Office equipment Minimum	Dec. 31, 2012 Office equipment Maximum	Dec. 31, 2012 Internally Developed Software	Dec. 31, 2012 Leasehold improvements Minimum	Dec. 31, 2012 Leasehold improvements Maximum
Cash and Cash Equivalents
Uninsured deposits	$ 24,515	$ 32,436
Property and equipment
Estimated useful lives			2 years	10 years	2 years	10 years	3 years	3 years	10 years