|
Fair Value Measurements (Details Textual)
|
9 Months Ended | 12 Months Ended |
|---|---|---|
|
Sep. 30, 2013
|
Dec. 31, 2013
|
|
| Investments and Fair Value Measurements (Textual) | ||
| Incremental discount rate premium due to lack of marketability | 10.00% | 10.00% |