|
Employee Benefit Plan (Details) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Employee Benefit Plan | |||
| Contributions to the 401(k) Plan | $ 0 | $ 0 | $ 0 |