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Stock-Based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 01, 2017
Oct. 02, 2016
Oct. 01, 2017
Oct. 02, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted     366,580  
Stock-based compensation $ 723 $ 456 $ 2,509 $ 1,627
Unrecognized Stock-Based Compensation Expense, Non-vested Shares 6,900   $ 6,900  
Weighted Average Remaining Vesting Period, Non-Vested Shares     2 years 1 month 6 days  
Expected Stock-Based Compensation, Remainder of Fiscal Year $ 800   $ 800