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STOCKHOLDERS' EQUITY (Offering Warrants) (Details) - USD ($) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Nov. 30, 2018 | Apr. 30, 2018 | Feb. 28, 2018 | Nov. 30, 2017 | Aug. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Jun. 29, 2017
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Deemed dividend |  |  |  |  |  | $ 4,222,000 | $ 12,431,000 |
Warrants exercised |  |  |  |  |  | 300,000 |  |
Common Stock |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Stock rights issued (in shares) |  |  |  |  | 856,446 |  |  |
Exercise price (in dollars per share) |  |  |  |  |  |  |  | $ 7.50
Offering Warrants |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Stock rights issued (in shares) |  |  |  |  | 2,680,000 |  |  |
Exercise price (in dollars per share) | $ 0.15 | $ 0.30 | $ 1.04 | $ 1.40 | $ 3.00 | $ 0.75 |  |
Class of warrant or right, term |  |  |  |  | 5 years |  |  |
Deemed dividend |  |  |  | $ 211,000 |  |  |  |
Warrants exercised |  |  |  |  |  | 2,200,000 |  |
Proceeds from issuance of warrants |  |  |  |  |  | $ 795,000 |  |
Intrinsic value of warrants exercised in period |  |  |  |  |  | $ 420,000 |  |
Offering Warrants | Deemed Dividend G |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Deemed dividend |  |  | $ 62,000 |  |  |  |  |
Offering Warrants | Deemed Dividend H |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Deemed dividend |  | $ 63,000 |  |  |  |  |  |
Offering Warrants | Deemed Dividend I |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Deemed dividend | $ 5,000 |  |  |  |  |  |  |
Offering Warrants | Common Stock |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Percentage of outstanding shares owned threshold prior to exercise of warrants |  |  |  |  | 4.99% |  |  |
Percentage of outstanding shares owned threshold after exercise of warrants |  |  |  |  | 9.99% |  |  |

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- Definition Class of Warrant or Right, Number of Issued Warrants or Rights + References No definition available. + Details
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- Definition Class of Warrant or Right, Term + References No definition available. + Details
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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(4)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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