Stock-Based Compensation - Allocation of Stock-Based Compensation Expense, Stock Options (Details) - USD ($)
$ in Thousands |
3 Months Ended |
6 Months Ended |
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
| Equity Incentive Plans |
|
|
|
|
| Share-based compensation expense by statement of operations line item |
|
|
|
|
| Change in fair value included in total share based compensation |
|
|
$ 200
|
|
| Stock options |
|
|
|
|
| Share-based compensation expense by statement of operations line item |
|
|
|
|
| Stock-based compensation expense |
$ 934
|
$ 445
|
1,506
|
$ 685
|
| Stock options | Other cost of revenue |
|
|
|
|
| Share-based compensation expense by statement of operations line item |
|
|
|
|
| Stock-based compensation expense |
19
|
5
|
32
|
7
|
| Stock options | Sales and marketing |
|
|
|
|
| Share-based compensation expense by statement of operations line item |
|
|
|
|
| Stock-based compensation expense |
192
|
99
|
342
|
170
|
| Stock options | Research and development |
|
|
|
|
| Share-based compensation expense by statement of operations line item |
|
|
|
|
| Stock-based compensation expense |
287
|
141
|
462
|
245
|
| Stock options | General and administrative |
|
|
|
|
| Share-based compensation expense by statement of operations line item |
|
|
|
|
| Stock-based compensation expense |
$ 436
|
$ 200
|
$ 670
|
$ 263
|