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CONVERTIBLE NOTES (Exchange Note debt discounts) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2019 | Dec. 31, 2018 | Jun. 30, 2018 | Jun. 30, 2019
Debt discounts |  |  |  |
Write off of derivative liability |  | $ 400 |  |
Offset by additional paid in capital | $ 39 |  | $ 438 |
Maximum |  |  |  |
Debt discounts |  |  |  |
Offset by additional paid in capital |  |  |  | $ 100
Convertible promissory notes - Exchange Notes | Convertible Debt [Member] |  |  |  |
Debt discounts |  |  |  |
Beginning balance | $ (83) |  |  | (83)
Deductions: Amortization/accretion |  |  |  | 2
Deductions: Write-off related to note conversions |  |  |  | 81
Ending balance |  | $ (83) |  | $ 0

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- Definition The increase (decrease) during the period in the carrying value of derivative instruments reported as liabilities that are due to be disposed of within one year (or the normal operating cycle, if longer). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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