Goodwill and Intangible Assets (Future Amortization Expense) (Details) $ in Thousands |
Dec. 31, 2016
USD ($)
|
|---|---|
| Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity | |
| 2017 | $ 54 |
| 2018 | 47 |
| 2019 | 40 |
| 2020 | 35 |
| 2021 | 26 |
| net book value | $ 202 |