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ACQUISITIONS OF BUSINESSES - Schedule of Preliminary Purchase Price Allocation (Details) (USD $)
 0 Months Ended 9 Months Ended 12 Months Ended
Sep. 16, 2013
Jun. 01, 2013
Feb. 01, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
ACQUISITIONS OF BUSINESSES [Abstract]            
Cash paid, net of cash acquired       $ 12,240,000 $ 10,128,000 $ 46,598,000
Seller notes       400,000   1,300,000
Total consideration 130,000 95,000 5,000 12,640,000   47,898,000
Estimated fair value of net tangible assets acquired [Abstract]            
Total current assets       1,273,000   3,712,000
Total non-current assets       1,200,000   1,971,000
Total liabilities       (374,000)   (1,082,000)
Net tangible assets acquired       2,099,000   4,601,000
Referral relationships       0   6,140,000
Non-competition agreements       0   1,000,000
Tradename       0   3,200,000
Goodwill       15,266,000   43,498,000
Fair value of non-controlling interest       (4,725,000)   (10,541,000)
Total consideration $ 130,000 $ 95,000 $ 5,000 $ 12,640,000   $ 47,898,000