Warrants (Schedule Of Assumptions Used In Calculating Fair Value Of Warrants) (Details) - $ / shares |
12 Months Ended | |
|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Class of Warrant or Right [Line Items] | ||
| Trading market prices | $ 2.02 | $ 1.40 |
| Estimated future volatility | 104.00% | 104.00% |
| Dividend | ||
| Minimum [Member] | ||
| Class of Warrant or Right [Line Items] | ||
| Estimated future risk-free rate | 2.14% | 1.06% |
| Equivalent volatility | 85.00% | 51.00% |
| Equivalent risk-free rate | 1.30% | 0.59% |
| Maximum [Member] | ||
| Class of Warrant or Right [Line Items] | ||
| Estimated future risk-free rate | 2.45% | 2.44% |
| Equivalent volatility | 104.00% | 60.00% |
| Equivalent risk-free rate | 1.89% | 1.25% |
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- Definition Investment Warrants, Fair Value Assumptions, Equivalent Risk Free Rate No definition available.
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- Definition Investment Warrants, Fair Value Assumptions, Equivalent Volatility Rate No definition available.
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- Definition Investment Warrants, Fair Value Assumptions, Estimated Dividend No definition available.
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- Definition Investment Warrants Fair Value Assumptions Estimated Future Volatility Rate No definition available.
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- Definition Investment Warrants, Fair Value Assumptions, Risk Free Interest Rate No definition available.
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- Definition Investment Warrants, Fair Value Assumptions, Trading Market Prices No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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