Employee Benefit Plan (Narrative)(Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 27, 2015 |
Dec. 28, 2014 |
Dec. 29, 2013 |
|
| Compensation and Retirement Disclosure [Abstract] | |||
| Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 209,000 | $ 176,000 | $ 151,000 |