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GOODWILL AND OTHER INTANGIBLE ASSETS (Details - Schedule of Goodwill) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Goodwill [Roll Forward] |  |
Goodwill, beginning balance | $ 418,093 | $ 256,776
Goodwill transferred to other assets |  | (1,059)
Goodwill disposed of through sale or transfer | (123) | (80)
Goodwill, impairment loss |  | (3,800)
Goodwill, ending balance | 440,981 | 418,093
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 | 722 | 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
Dignity Health |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | 1 |
West Valley Imaging Group, LLC |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | 2,490 |
Hudson Valley Radiology Associates |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | 3,125 |
Kern Radiology Imaging Systems Inc. |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | 10,507 |
Zilkha Radiology |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | 2,577 |
Ramic Mahwah LLC |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | 231 |
Garden State Radiology Network LLC |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | 2,021 |
Nulogix, Inc. |  |
Goodwill [Roll Forward] |  |
Goodwill acquired through acquisitions | $ 1,337 |

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