PROPERTY AND EQUIPMENT (Details) - USD ($) |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Property, Plant and Equipment, Gross | $ 94,784,000 | $ 96,608,000 |
| Accumulated depreciation | (47,661,000) | (46,572,000) |
| Net property and equipment | 47,123,000 | 50,036,000 |
| Medical Equipment and Facilities [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, Plant and Equipment, Gross | 83,267,000 | 82,151,000 |
| Accumulated depreciation | (13,417,000) | (11,269,000) |
| Office Equipment [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, Plant and Equipment, Gross | 721,000 | 721,000 |
| Deposits and Construction in Progress [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, Plant and Equipment, Gross | 5,796,000 | 8,736,000 |
| Deposits Towards Purchase of Proton Beam Systems [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, Plant and Equipment, Gross | $ 5,000,000 | $ 5,000,000 |