|
Stockholders' Equity (Summary Of Stock Options Outstanding) (Details) (USD $)
|
12 Months Ended |
|
Dec. 31, 2013
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
| Number Outstanding |
663,872 |
| Weighted Remaining Contractual Life (Years) |
7 years 18 days |
| Weighted Average Exercise Price |
$ 13.03 |
| Number of Shares |
414,274 |
| Weighted Average Exercise Price |
$ 17.71 |
|
$32.00 - $71.00 [Member]
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
| Ranges of Exercise Price, Minimum |
$ 32.00 |
| Ranges of Exercise Price, Maximum |
$ 71.00 |
| Number Outstanding |
110,177 |
| Weighted Remaining Contractual Life (Years) |
3 years 7 months 13 days |
| Weighted Average Exercise Price |
$ 56.44 |
| Number of Shares |
110,177 |
| Weighted Average Exercise Price |
$ 56.44 |
|
$5.00 - $6.08 [Member]
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
| Ranges of Exercise Price, Minimum |
$ 5.00 |
| Ranges of Exercise Price, Maximum |
$ 6.08 |
| Number Outstanding |
301,334 |
| Weighted Remaining Contractual Life (Years) |
9 years 1 month 6 days |
| Weighted Average Exercise Price |
$ 5.25 |
| Number of Shares |
56,736 |
| Weighted Average Exercise Price |
$ 5.10 |
|
$1.25 - $3.85 [Member]
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
| Ranges of Exercise Price, Minimum |
$ 1.25 |
| Ranges of Exercise Price, Maximum |
$ 3.85 |
| Number Outstanding |
252,361 |
| Weighted Remaining Contractual Life (Years) |
7 years 8 months 19 days |
| Weighted Average Exercise Price |
$ 3.37 |
| Number of Shares |
247,361 |
| Weighted Average Exercise Price |
$ 3.35 |