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Share-Based Compensation - Narrative (Details)
12 Months Ended
Dec. 30, 2017
USD ($)
plan
tranche
shares
Dec. 31, 2016
USD ($)
shares
Jan. 02, 2016
USD ($)
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of stock compensation plans | plan 3    
Income tax benefits offset by a valuation allowance | $ $ 1,000,000.0 $ 900,000 $ 700,000
Excess tax benefits from share-based compensation arrangements | $ $ 0 $ 0 $ 0
Long term equity incentive plan 2004      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares reserved for issuance 0    
Long term equity incentive plan 2006      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares reserved for issuance 0    
Long-term equity incentive plan 2016      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares reserved for issuance 263,500    
Performance shares      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Performance shares amended under award agreement (in shares) 1,500    
Share-based compensation, remaining contractual terms 7 months 6 days    
Total unrecognized compensation expense | $ $ 0    
Number of vesting tranches | tranche 3    
Award requisite service period 3 years    
Restricted Stock and Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total unrecognized compensation expense | $ $ 0    
Weighted average remaining contractual term 0 years    
Restricted Stock and Restricted Stock Units | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Awards vesting period 3 years    
Weighted average remaining contractual term 3 years    
Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total unrecognized compensation expense | $ $ 400,000    
Weighted average term for compensation expense to be recognized 4 months 24 days    
Weighted average remaining contractual term 4 months 24 days    
Restricted Stock Units (RSUs) | Board Of Directors      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Awards vesting period     1 year
Restricted Stock Units (RSUs) | Executive Officer      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Awards vesting period     3 years
Restricted Stock Units (RSUs) | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Awards vesting period     3 years
Weighted average remaining contractual term 3 years    
Restricted Stock Units (RSUs) | Maximum | Director      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation, remaining contractual terms 10 years    
Restricted Stock Units (RSUs) | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Awards vesting period     2 years
Stock options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (in shares) 0 0 0
Stock options exercised in the period 0 0 0
Stock options | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted average remaining contractual term 10 years