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FAIR VALUE (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Jan. 31, 2016 | Feb. 28, 2012 | Mar. 31, 2017 | Mar. 31, 2016 | Dec. 31, 2016
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Common stock warrants issued (in shares) |  |  | 2,933,106 |  |
Warrants outstanding (shares) |  |  |  |  | 3,334,011
2012 Warrant Liability |  |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Common stock warrants issued (in shares) |  | 3,400,000 |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Beginning balance | $ 350 |  | $ 0 | $ 350 |
Total (gains) or losses: |  |  |  |  |
Recognized in earnings |  |  | 0 | (330) |
Balance at end of period |  |  | $ 0 | 20 |
2016 Warrant Liability |  |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Common stock warrants issued (in shares) | 1,800,000 |  |  |  |
Warrants outstanding (shares) |  |  | 800,000 |  |
Share price (in dollars per share) |  |  | $ 0.56 |  |
Volatility (as a percent) |  |  | 115.00% |  |
Risk-free interest rate (as a percent) |  |  | 1.66% |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Beginning balance | $ 0 |  | $ 582 | 0 |
Additions |  |  | 0 | 1,437 |
Total (gains) or losses: |  |  |  |  |
Recognized in earnings |  |  | 33 | 9 |
Balance at end of period |  |  | $ 615 | $ 1,446 |

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- Definition Number 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)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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