Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Narrative)(Details)

v3.7.0.1
Stock-Based Compensation (Narrative)(Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 25, 2016
Dec. 27, 2015
Dec. 28, 2014
Stock-based compensation $ 2,193 $ 1,718 $ 1,054
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount $ 160 114 224
ShareBasedCompensationArrangementByShareBasedPaymentAwardEstimatedFairValueOfCommonStockPerShare $ 32.95    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value $ 9,100 600  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value 500 $ 600 $ 600
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 11.12
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized 400    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options $ 4,800    
2012 Omnibus Equity Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 10 years    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 818,257    
Employee Stock Option [Member] | 2012 Omnibus Equity Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 20.00%    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 5 years    
Minimum [Member] | Restricted Stock Units (RSUs) [Member] | 2012 Omnibus Equity Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 4 years    
Maximum [Member] | Restricted Stock Units (RSUs) [Member] | 2012 Omnibus Equity Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 5 years