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PROPERTY AND EQUIPMENT (Details Textual) - USD ($) | Dec. 31, 2018 | Dec. 31, 2017
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Property, Plant and Equipment [Line Items] |  |
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation | $ 54,008,000 | $ 51,666,000
Property, Plant and Equipment, Net | 46,694,000 | 48,491,000
Construction in Progress, Gross | 3,832,000 |
Medical Equipment and Facilities [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Capital Leased Assets, Gross | 46,559,000 | 44,758,000
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation | 20,292,000 | $ 16,777,000
Radiation Oncology Physician Group [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Long Term Purchase Commitment Deposits For Assets | 400,000 |
Three Mevion S250 Proton Beam Radiation Therapy [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Long Term Purchase Commitment Deposits For Assets | 2,250,000 |
Gamma Knife Units [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property, Plant and Equipment, Net | $ 729,000 |

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- Definition Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84164758&loc=d3e45014-112735 + Details
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