Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plan (Narrative)(Details)

v3.7.0.1
Employee Benefit Plan (Narrative)(Details) - USD ($)
12 Months Ended
Dec. 25, 2016
Dec. 27, 2015
Dec. 28, 2014
Compensation and Retirement Disclosure [Abstract]      
Defined Contribution Plan, Employer Discretionary Contribution Amount $ 229,000 $ 209,000 $ 176,000