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FAIR VALUE MEASUREMENT (Tables) | 12 Months Ended
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Dec. 31, 2017
2013 Notes and 2016 Notes [Member] |
Fair Value Measurements, Recurring and Nonrecurring | The following parameters were used:
|  | 2013 Notes |  |  | 2016 Notes |
Stock price (USD) |  |  | 0.6612 |  |  |  | 0.6612 |
Expected term |  |  | 0.71 |  |  |  | 3.88 |
Risk free rate |  |  | 1.66 | % |  |  | 2.08 | %
Volatility |  |  | 79.57 | % |  |  | 68.89 | %
Yield |  |  | 11.86 | % |  |  | 11.89 | %

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- Definition Tabular disclosure of the inputs and valuation techniques used to measure fair value, and a discussion of changes in valuation techniques and related inputs, if any, applied during the period to each separate class of assets, liabilities, and financial instruments classified in shareholders' equity that are measured on a recurring and/or nonrecurring basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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