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GOODWILL AND OTHER INTANGIBLE ASSETS (Details - Schedule of Goodwill) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | $ 256,776 | $ 239,553
Goodwill disposed of through sale or transfer | (80) |
Goodwill transferred to other assets | (1,059) | (289)
Goodwill, impairment loss | (3,800) |
Goodwill, ending balance | 418,093 | 256,776
Resolution Imaging Medical Corp |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions |  | 1,901
MRI Centers, Inc. |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions |  | 401
Santa Monica Imaging Group JV |  |
Goodwill [Roll Forward] |  |
Goodwill disposed of through sale or transfer |  | (1,901)
D&D Diagnostics, Inc |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions |  | 1,519
Stockton MRI, Inc |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions |  | 3,101
Hematology Oncology |  |
Goodwill [Roll Forward] |  |
Goodwill disposed of through sale or transfer |  | (110)
DIA, Inc |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions |  | 9,185
Adjustments to our preliminary allocation of the purchase price of DIA, Inc. |  | 1,058
Breastlink Medical |  |
Goodwill [Roll Forward] |  |
Goodwill disposed of through sale or transfer |  | (509)
RDI, Inc. |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions |  | 1,202
RadSite, LLC |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions |  | $ 1,665
Imaging Services Company of New York |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | 2,692 |
MemorialCare Medical Foundation |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | 545 |
Womens Imaging Specialists |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | 4,268 |
Valley Metabolic Imaging |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | 1,469 |
Sierra Imaging Associates |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | 1,147 |
Washington Heights Medical Management |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | 2,303 |
Medical Arts Radiological Group, PC |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | 41,469 |
Arcadia Radiology Imaging |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | 2,582 |
Southern California Diagnostic Imaging, Inc |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | 41 |
Orange County Diagnostics Imaging Center |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | 3,618 |
New Jersey Imaging Network, LLC |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | $ 106,122 |

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