Warrants (Schedule Of Assumptions Used In Calculating Fair Value Of Warrants) (Details) - $ / shares |
6 Months Ended | 12 Months Ended |
---|---|---|
Jun. 30, 2018 |
Dec. 31, 2017 |
|
Class of Warrant or Right [Line Items] | ||
Trading market prices | $ 1.41 | $ 2.02 |
Estimated future volatility | 102.00% | 104.00% |
Dividend | ||
Minimum [Member] | ||
Class of Warrant or Right [Line Items] | ||
Estimated future risk-free rate | 2.76% | 2.14% |
Equivalent volatility | 37.00% | 85.00% |
Equivalent risk-free rate | 0.68% | 1.30% |
Maximum [Member] | ||
Class of Warrant or Right [Line Items] | ||
Estimated future risk-free rate | 2.87% | 2.45% |
Equivalent volatility | 83.00% | 104.00% |
Equivalent risk-free rate | 2.46% | 1.89% |
X | ||||||||||
- Definition Investment Warrants, Fair Value Assumptions, Equivalent Risk Free Rate No definition available.
|
X | ||||||||||
- Definition Investment Warrants, Fair Value Assumptions, Equivalent Volatility Rate No definition available.
|
X | ||||||||||
- Definition Investment Warrants, Fair Value Assumptions, Estimated Dividend No definition available.
|
X | ||||||||||
- Definition Investment Warrants Fair Value Assumptions Estimated Future Volatility Rate No definition available.
|
X | ||||||||||
- Definition Investment Warrants, Fair Value Assumptions, Risk Free Interest Rate No definition available.
|
X | ||||||||||
- Definition Investment Warrants, Fair Value Assumptions, Trading Market Prices No definition available.
|
X | ||||||||||
- 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.
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|