Description of Business and Summary of Significant Accounting Policies (Foreign currency translation) (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Description of Business and Summary of Significant Accounting Policies | |||
| Foreign Currency Transaction Gain (Loss), before Tax | $ (800,000) | $ (400,000) | $ 34,000 |