Income Taxes - Components of Income Tax Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Income Tax Disclosure [Abstract] | ||||
| Current | $ 71 | $ 44 | $ 283 | $ 83 |
| Deferred | (5) | 0 | (88) | 0 |
| Income tax expense | $ 66 | $ 44 | $ 195 | $ 83 |