Stock-Based Compensation (Schedule Of Assumptions Made In Calculating The Fair Value Of Options) (Details) |
9 Months Ended | |
|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Expected dividend yield | 0.00% | 0.00% |
| Expected volatility, minimum | 31.00% | 72.00% |
| Expected volatility, maximum | 75.00% | 80.00% |
| Risk free interest rate, minimum | 0.80% | 1.20% |
| Risk free interest rate, maximum | 1.40% | 1.70% |
| Minimum [Member] | ||
| Expected term (in years) | 2 years | 5 years |
| Maximum [Member] | ||
| Expected term (in years) | 6 years | 6 years |