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Retirement Plans (Details)
$ in Thousands
12 Months Ended
Jan. 01, 2017
USD ($)
Rate
Jan. 03, 2016
USD ($)
Dec. 28, 2014
USD ($)
Defined Contribution Plan Disclosure [Line Items]      
Defined Contribution Plan, Employer Matching Contribution, Percent | Rate 50.00%    
Defined Contribution Plan, Requisite Service Period, Hours of Service 1,000    
Defined Contribution Plan, Cost Recognized $ 496 $ 463 $ 370
Deferred Compensation Arrangements, Interest Rate | Rate 8.00%    
Deferred Compensation Arrangement with Individual, Employer Contribution $ 0    
Deferred compensation $ 1,756 $ 997  
Minimum [Member]      
Defined Contribution Plan Disclosure [Line Items]      
Defined Contribution Plan, Vesting Period of Company Contributions 1 year    
Maximum [Member]      
Defined Contribution Plan Disclosure [Line Items]      
Defined Contribution Plan, Vesting Period of Company Contributions 5 years