Stock-Based Compensation Plan (Schedule Of Valuation Assumptions Used In Computing Fair Value Of Stock-Based Awards) (Details) - Stock Options |
9 Months Ended | |||||
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Sep. 30, 2017
$ / shares
shares
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| Vest In Four Equal Consecutive Quarterly Tranches From The Date Of Grant | ||||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||
| Options granted | shares | 363 | |||||
| Dividend yield | 0.00% | |||||
| Risk-free interest rate | 1.80% | |||||
| Vesting Immediately [Member] | ||||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||
| Options granted | shares | 100 | |||||
| Grant price | $ 6.10 | |||||
| Dividend yield | 0.00% | |||||
| Expected Volatility | 46.90% | [1] | ||||
| Risk-free interest rate | 1.41% | |||||
| Expected life (years) | 2 years 9 months | [2] | ||||
| Weighted average fair value | $ 1.20 | |||||
| Minimum [Member] | ||||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||
| Vesting period | 1 year | |||||
| Grant price | $ 6.10 | |||||
| Expected Volatility | 41.90% | |||||
| Risk-free interest rate | 1.80% | |||||
| Expected life (years) | 5 years 3 months 22 days | |||||
| Weighted average fair value | $ 2.45 | |||||
| Maximum [Member] | ||||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||
| Vesting period | 2 years | |||||
| Grant price | $ 6.15 | |||||
| Expected Volatility | 42.20% | |||||
| Expected life (years) | 5 years 3 months 29 days | |||||
| Weighted average fair value | $ 2.49 | |||||
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