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NOTE, WARRANT, & COMMON STOCK PURCHASE AGREEMENT (Details Textual) - USD ($) |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 12, 2014 | Oct. 31, 2014 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Note, Warrant And Common Stock Purchase Agreement [Line Items] |  |  |  |  |
Common Stock, Shares, Issued |  |  | 5,468,000 | 5,364,000 |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  | $ 2.20 | $ 2.20
Proceeds from Issuance of Private Placement | $ 1,600,000 |  | $ 0 | $ 0 | $ 1,800,000
Gain (Loss) on Extinguishment of Debt |  |  | (108,000) | $ 0 | $ 0
Class of Warrant or Right, Exercised |  |  | $ 100,000 |  |
Class of Warrant or Right, Outstanding |  |  | 100,000 |  |
Notes Payable [Member] |  |  |  |  |
Note, Warrant And Common Stock Purchase Agreement [Line Items] |  |  |  |  |
Warrants Not Settleable in Cash, Fair Value Disclosure |  |  | $ 145,000 |  |
Gain (Loss) on Extinguishment of Debt |  |  | 108,000 |  |
Debt Instrument, Unamortized Discount |  |  | 80,000 |  |
Deferred Fees From Issuance Of Note |  |  | $ 28,000 |  |
Private Placement [Member] |  |  |  |  |
Note, Warrant And Common Stock Purchase Agreement [Line Items] |  |  |  |  |
Sale of Stock, Number of Shares Issued in Transaction |  |  | 100,000 |  |
Proceeds from Issuance of Private Placement |  |  | $ 220,000 |  |
Common Stock, Value, Subscriptions |  |  | 1,220,000 |  |
Stock Issued During Period, Shares, New Issues | 650,000 |  |  |  |
Note and Warrant Purchase Agreement [Member] |  |  |  |  |
Note, Warrant And Common Stock Purchase Agreement [Line Items] |  |  |  |  |
Debt Instrument, Face Amount |  | $ 1,000,000 | $ 1,000,000 |  |
Common Stock, Shares, Issued |  | 200,000 | 200,000 |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 15.00% |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  | $ 2.20 |  |  |
Warrant Expiration Term |  | 3 years |  |  |
Mevion Medical Systems Inc [Member] |  |  |  |  |
Note, Warrant And Common Stock Purchase Agreement [Line Items] |  |  |  |  |
Cash Payments |  |  | $ 1,000,000 |  |

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