Share-Based Payment Arrangements (Details 7) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Expected dividend yield | 0.00% | 0.00% |
| Expected volatility Minimum | 55.00% | 55.00% |
| Expected volatility Maximum | 55.00% | 56.00% |
| Risk-free interest rate Minimum | 1.29% | 1.35% |
| Risk-free interest rate Maximum | 1.36% | 1.67% |
| Expected term (years) | 5 years 6 months | |
| Maximum | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Expected term (years) | 5 years 6 months | |