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1. DESCRIPTION OF BUSINESS (Tables)
12 Months Ended
Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Affiliates of Radnet
   % owned by RadNet, Inc.
    
Franklin Imaging Joint Venture  49%
Carroll County Radiology, LLC  40%
MRI at St. Joseph Medical Center, LLC  49%
Greater Baltimore Diagnostic Imaging Partnership ("GBDIP")  50%