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COMMITMENTS AND CONTINGENCIES (Details Textual) - USD ($) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 20, 2018 | Jul. 21, 2017 | Dec. 31, 2019 | Sep. 06, 2019
Commitments And Contingencies [Line Items] |  |  |  |
Commitment period |  | 5 years |  |
Gamma Knife Perfexion System |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Long-term purchase commitment amount |  |  | $ 6,910,000 |
LINAC system |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Long-term purchase commitment amount |  |  | $ 10,096,000 |
Commitment period |  |  | 9 years |
Mevion Medical Systems Inc |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Long-term purchase commitment amount |  |  | $ 34,000,000 |
Deposits for future purchase |  |  | $ 2,250,000 |
Increase in annual service fees | $ 250,000 |  |  |
Purchase agreement annual prepayment |  |  |  | $ 250,000

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- Definition Amount of increase decrease in annual servicing fees + References No definition available. + Details
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- Definition Deposits for purchase of commitments in future. + References No definition available. + Details
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- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment. + References No definition available. + Details
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- Definition Period covered by the long-term purchase commitment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Details
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- Details
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