Fair Value Measurements - Assumptions (Details)
|
12 Months Ended |
Dec. 31, 2015 |
Dec. 31, 2014 |
| Lender Warrants |
|
|
| Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] |
|
|
| Risk-free interest rate |
1.97%
|
|
| Expected term |
9 years 4 months 2 days
|
|
| Expected volatility |
58.00%
|
|
| Dividend yield |
0.00%
|
0.00%
|
| Lender Warrants | Minimum |
|
|
| Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] |
|
|
| Risk-free interest rate |
|
2.13%
|
| Expected term |
|
9 years 5 months 12 days
|
| Expected volatility |
|
57.00%
|
| Lender Warrants | Maximum |
|
|
| Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] |
|
|
| Risk-free interest rate |
|
2.58%
|
| Expected term |
|
10 years
|
| Expected volatility |
|
58.00%
|
| Stock Option Liability Awards |
|
|
| Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] |
|
|
| Dividend yield |
0.00%
|
0.00%
|
| Stock Option Liability Awards | Minimum |
|
|
| Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] |
|
|
| Risk-free interest rate |
1.46%
|
1.61%
|
| Expected term |
4 years 8 months 27 days
|
4 years 10 months 6 days
|
| Expected volatility |
51.00%
|
56.00%
|
| Stock Option Liability Awards | Maximum |
|
|
| Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] |
|
|
| Risk-free interest rate |
1.67%
|
2.00%
|
| Expected term |
6 years 11 days
|
6 years 29 days
|
| Expected volatility |
53.00%
|
58.00%
|