Segment Information (Details 2) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2017 |
Sep. 30, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
|
| Segment Reporting Information [Line Items] | ||||
| Total consolidated depreciation and amortization expenses | $ 30 | $ 34 | $ 95 | $ 112 |
| Canada [Member] | ||||
| Segment Reporting Information [Line Items] | ||||
| Total consolidated depreciation and amortization expenses | 1 | 1 | 3 | 3 |
| Other foreign markets [Member] | ||||
| Segment Reporting Information [Line Items] | ||||
| Total consolidated depreciation and amortization expenses | 1 | 1 | ||
| U.K. [Member] | ||||
| Segment Reporting Information [Line Items] | ||||
| Total consolidated depreciation and amortization expenses | 5 | 5 | 14 | 15 |
| United States [Member] | ||||
| Segment Reporting Information [Line Items] | ||||
| Total consolidated depreciation and amortization expenses | $ 23 | $ 28 | $ 77 | $ 94 |