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Stock-Based Compensation - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 01, 2019
Mar. 30, 2019
Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation expense   $ 1,553 $ 1,464
Unrecognized compensation expense related to stock awards   $ 9,388  
Recognition period   2 years  
Executive Officer | Performance Based Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of units granted (in shares) 27,422    
Aggregate grant date fair value $ 2,364    
Actual adjusted EBITDA, forfeiture threshold   50.00%  
Percentage of target award expected to vest   100.00%  
Executive Officers And Employees | Time Based Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of units granted (in shares) 39,206    
Aggregate grant date fair value $ 3,385    
Share-Based Compensation Award, Performance Metric, Actual Adjusted EBITDA Between 50 Percent And 100 Percent | Executive Officer | Performance Based Restricted Stock Units | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of adjustment of award amount   50.00%  
Share-Based Compensation Award, Performance Metric, Actual Adjusted EBITDA Between 50 Percent And 100 Percent | Executive Officer | Performance Based Restricted Stock Units | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of adjustment of award amount   100.00%  
Share-based Compensation Award, Performance Metric, Actual Adjusted EBITDA Between 100 Percent And 115 Percent | Executive Officer | Performance Based Restricted Stock Units | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of adjustment of award amount   100.00%  
Share-based Compensation Award, Performance Metric, Actual Adjusted EBITDA Between 100 Percent And 115 Percent | Executive Officer | Performance Based Restricted Stock Units | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of adjustment of award amount   150.00%  
Share-Based Compensation Award, Performance Metric, Actual Adjusted EBITDA In Excess Of 115 Percent | Executive Officer | Performance Based Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of adjustment of award amount   150.00%  
Share-based Compensation Award, Tranche One | Executive Officer | Performance Based Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage   33.33%  
Share-based Compensation Award, Tranche One | Executive Officers And Employees | Time Based Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage   33.33%  
Share-based Compensation Award, Tranche Two | Executive Officer | Performance Based Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage   33.33%  
Share-based Compensation Award, Tranche Two | Executive Officers And Employees | Time Based Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage   33.33%  
Share-based Compensation Award, Tranche Three | Executive Officer | Performance Based Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage   33.33%  
Share-based Compensation Award, Tranche Three | Executive Officers And Employees | Time Based Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage   33.33%