Geographic Information (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2017 |
Sep. 30, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
|
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||||
| Revenue | $ 8,781 | $ 9,528 | $ 26,837 | $ 26,906 |
| North America [Member] | ||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||||
| Revenue | 17,429 | 17,942 | ||
| International [Member] | ||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||||
| Revenue | 9,408 | 8,964 | ||
| UNITED KINGDOM | ||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||||
| Revenue | 4,559 | 4,272 | ||
| Middle East [Member] | ||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||||
| Revenue | 3,989 | 2,753 | ||
| Europe [Member] | ||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||||
| Revenue | 661 | 1,246 | ||
| Other [Member] | ||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||||
| Revenue | $ 199 | $ 693 | ||