v3.8.0.1
Stock-Based Compensation - Restricted Stock Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Granted, Number of shares 425    
Vested, Number of shares (750)    
Forfeited, Number of shares (150)    
Unvested, Ending Balance, Number of shares 275    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]      
Granted, Weighted average grant date fair value $ 861    
Vested, Weighted average grant date fair value 1,000    
Forfeited, Weighted average grant date fair value 861    
Unvested, Ending Balance, Weighted average grant date fair value $ 861    
Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Allocated Share-based Compensation Expense $ 500 $ 767 $ 333
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Unvested, Beginning Balance, Number of shares 750    
Granted, Number of shares 1,600    
Unvested, Ending Balance, Number of shares   750  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]      
Unvested, Beginning Balance, Weighted average grant date fair value $ 1,000    
Unvested, Ending Balance, Weighted average grant date fair value   $ 1,000