SHARE BASED COMPENSATION (Schedule of Assumptions Used to Estimate the Fair Value of the Options) (Details) - Options [Member] |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Assumptions used to estimate fair value of the options [Abstract] | |||
| Average risk-free rate of return, minimum (as a percent) | 1.93% | 1.00% | 1.36% |
| Average risk-free rate of return, maximum (as a percent) | 2.00% | 1.52% | 1.76% |
| Weighted average expected option life | 3 years 2 months 12 days | 3 years 2 months 12 days | 3 years 2 months 12 days |
| Volatility rate, minimum (as a percent) | 103.04% | 119.83% | 140.01% |
| Volatility rate, maximum (as a percent) | 109.89% | 146.29% | 146.02% |
| Dividend yield (as a percent) | 0.00% | 0.00% | 0.00% |