Annual report pursuant to Section 13 and 15(d)

Employee Retirement Plan and Deferred Compensation Plan - Additional Information (Detail)

v3.3.1.900
Employee Retirement Plan and Deferred Compensation Plan - Additional Information (Detail) - USD ($)
1 Months Ended 12 Months Ended
Jan. 31, 2010
Jan. 02, 2016
Jan. 03, 2015
Dec. 28, 2013
Compensation and Retirement Disclosure [Abstract]        
Minimum service period required to cover under plan   1 month    
Employer's match per dollar of participants salary   $ 0.50    
Employer's match percentage of participants salary   6.00%    
Contributions vest in annual installments   3 years    
Discretionary contributions   $ 280,000 $ 256,000 $ 266,000
Highly Compensated Employees        
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]        
Participant deferral of base salary, percentage (up to) 90.00%      
Participant deferral of annual earned bonus, percentage (up to) 100.00%      
Deferred compensation plan vested 100.00%      
Employer contribution percentage of eligible participants eligible contribution 50.00%      
Employer matching contribution, percentage of participants eligible contributions 2.00%      
Increase (decrease) in deferred compensation, employee contribution   102,000 127,000  
Increase (decrease) in deferred compensation, employer contribution   27,000 32,000  
Increase (decrease) in deferred compensation, earnings   13,000 43,000  
Increase (decrease) in deferred compensation, distributions   307,000 291,000  
Gain (loss) on change in cash surrender value   73,000 22,000  
Other non-current assets | Highly Compensated Employees        
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]        
Deferred compensation plan assets   781,000 854,000  
Other non-current liabilities | Highly Compensated Employees        
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]        
Deferred compensation plan associated liabilities   $ 558,000 $ 749,000