Goodwill and Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands |
9 Months Ended | |
|---|---|---|
Sep. 30, 2016 |
Dec. 31, 2015 |
|
| Finite Lived Intangible Assets [Line Items] | ||
| Accumulated amortization | $ (1,243) | $ (959) |
| Total | $ 471 | 444 |
| Domain names | ||
| Finite Lived Intangible Assets [Line Items] | ||
| Intangible assets, Average Remaining Useful Life | 17 months | |
| Intangible assets, gross | $ 1,268 | 1,268 |
| Tradenames and trademarks | ||
| Finite Lived Intangible Assets [Line Items] | ||
| Intangible assets, Average Remaining Useful Life | 7 months | |
| Intangible assets, gross | $ 109 | 109 |
| Non-compete agreements | ||
| Finite Lived Intangible Assets [Line Items] | ||
| Intangible assets, Average Remaining Useful Life | 6 months | |
| Intangible assets, gross | $ 26 | $ 26 |
| Software | ||
| Finite Lived Intangible Assets [Line Items] | ||
| Intangible assets, Average Remaining Useful Life | 32 months | |
| Intangible assets, gross | $ 311 |