Description of Business and Summary of Significant Accounting Policies (Warranty) (Details) $ in Thousands |
9 Months Ended |
|---|---|
|
Sep. 30, 2016
USD ($)
| |
| Product Warranty | |
| Product warranty period | 2 years |
| Product warranty period of networking products | 3 years |
| Changes in the product warranty liability | |
| Balance at beginning of period | $ 1,415 |
| Warranty costs accrued | 1,145 |
| Warranty claims | (863) |
| Balance at end of period | $ 1,697 |