Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Narrative) (Details)

v3.19.1
Stock-Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 30, 2018
Dec. 31, 2017
Dec. 25, 2016
Dec. 28, 2018
Stock-based compensation $ 3,096 $ 2,880 $ 2,193  
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount 201 218 160  
ShareBasedCompensationArrangementByShareBasedPaymentAwardEstimatedFairValueOfCommonStockPerShare       $ 17.96
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value 300 600    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value 300 $ 300 $ 500  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options $ 7,300      
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 502,138      
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