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STOCKHOLDERS' EQUITY (Series C Warrants) (Details) - USD ($) | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Feb. 28, 2018 | Mar. 31, 2019 | Mar. 31, 2018 | Nov. 30, 2017
Class of Stock [Line Items] |  |  |  |
Underlying shares (in shares) |  | 917,563 |  |
Warrants exercised |  | 20,000 |  |
Series C Warrants [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Underlying shares (in shares) |  |  |  | 130,857
Exercise price (in dollars per share) |  |  |  | $ 24.45
Warrants and Rights Outstanding, Term |  | 5 years |  |
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%
2018 Inducement Agreement |  |  |  |
Class of Stock [Line Items] |  |  |  |
Deemed dividend |  |  | $ 3,514,000 |
2018 Purchase Agreement | Deemed Dividend J |  |  |  |
Class of Stock [Line Items] |  |  |  |
Deemed dividend |  |  | $ 58,000 |
2018 Purchase Agreement | Series C Warrants [Member] |  |  |  |
Class of Stock [Line Items] |  |  |  |
Exercise price (in dollars per share) | $ 15.60 | $ 11.25 |  |
2018 Purchase Agreement | Series C Warrants [Member] | Deemed Dividend J |  |  |  |
Class of Stock [Line Items] |  |  |  |
Deemed dividend | $ 58,000 |  |  |

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- Definition Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + 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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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + 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)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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