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ACQUISITIONS OF BUSINESSES - Schedule of Preliminary Purchase Price Allocation (Details) (USD $)
 0 Months Ended 6 Months Ended 12 Months Ended
Sep. 16, 2013
Jun. 01, 2013
Feb. 01, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
ACQUISITIONS OF BUSINESSES [Abstract]            
Cash paid, net of cash acquired       $ 10,750,000 $ 9,998,000 $ 46,628,000
Seller notes       400,000   1,300,000
Total consideration 130,000 95,000 5,000 11,150,000   47,928,000
Estimated fair value of net tangible assets acquired [Abstract]            
Total current assets       1,203,000   3,756,000
Total non-current assets       1,200,000   2,283,000
Total liabilities       (374,000)   (1,082,000)
Net tangible assets acquired       2,029,000   4,957,000
Referral relationships       0   940,000
Non-competition agreements       0   400,000
Tradename       0   1,500,000
Goodwill       13,846,000   50,672,000
Fair value of non-controlling interest       (4,725,000)   (10,541,000)
Total consideration $ 130,000 $ 95,000 $ 5,000 $ 11,150,000   $ 47,928,000