Restructuring (Details) $ in Thousands |
12 Months Ended |
|---|---|
|
Dec. 31, 2016
USD ($)
| |
| Restructuring Reserve [Roll Forward] | |
| December 31, 2015 | $ 37 |
| Charge to expense | 0 |
| Cash paid | 37 |
| December 31, 2016 | 0 |
| Accrued Severance [Member] | |
| Restructuring Reserve [Roll Forward] | |
| December 31, 2015 | 37 |
| Charge to expense | 0 |
| Cash paid | 37 |
| December 31, 2016 | $ 0 |