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RELATED PARTY TRANSACTIONS (Details Textual) - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Jun. 12, 2014 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Oct. 31, 2014
Related Party Transaction [Line Items] |  |  |  |  |
Common Stock, Shares, Issued |  | 5,468,000 | 5,364,000 |  |
Proceeds from Issuance of Private Placement | $ 1,600,000 | $ 0 | $ 0 | $ 1,800,000 |
Note and Warrant Purchase Agreement [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Debt Instrument, Face Amount |  | $ 1,000,000 |  |  | $ 1,000,000
Common Stock, Shares, Issued |  | 200,000 |  |  | 200,000
Private Placement [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Stock Issued During Period, Shares, New Issues | 650,000 |  |  |  |
Sale of Stock, Number of Shares Issued in Transaction |  | 100,000 |  |  |
Proceeds from Issuance of Private Placement |  | $ 220,000 |  |  |
GKF Subsidiary [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent |  | 81.00% |  |  |
Equity Method Investment, Ownership Percentage |  | 70.00% |  |  |
U.S. Subsidiary Of Elekta [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent |  | 19.00% |  |  |
EWRS LLC [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Equity Method Investment, Ownership Percentage |  | 70.00% |  |  |
EMKA [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Equity Method Investment, Ownership Percentage |  | 30.00% |  |  |
Mevion Medical Systems Inc [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Investments, Fair Value Disclosure |  | $ 579,000 |  |  |
Deposit Assets, Total |  | $ 2,000,000 |  |  |

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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
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