Stock-Based Compensation - Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Stock-based compensation expense, by operating expense category | ||||
| Stock-based compensation expense | $ 656 | $ 116 | $ 1,048 | $ 251 |
| Platform operations | ||||
| Stock-based compensation expense, by operating expense category | ||||
| Stock-based compensation expense | 75 | 34 | 114 | 51 |
| Sales and marketing | ||||
| Stock-based compensation expense, by operating expense category | ||||
| Stock-based compensation expense | 200 | 34 | 318 | 88 |
| Technology and development | ||||
| Stock-based compensation expense, by operating expense category | ||||
| Stock-based compensation expense | 216 | 24 | 330 | 53 |
| General and administrative | ||||
| Stock-based compensation expense, by operating expense category | ||||
| Stock-based compensation expense | $ 165 | $ 24 | $ 286 | $ 59 |