Quarterly report pursuant to Section 13 or 15(d)

Borrowings - Additional Information (Detail)

v3.2.0.727
Borrowings - Additional Information (Detail)
 6 Months Ended 18 Months Ended
Jul. 01, 2016
Jul. 04, 2015
USD ($)
Jun. 30, 2016
USD ($)
Mar. 24, 2015
USD ($)
Mar. 23, 2015
USD ($)
Jan. 03, 2015
USD ($)
Line of Credit Facility [Line Items]            
Capital leases payable   $ 9,776,000        
Revolving loan payable   7,986,000       $ 11,022,000
Revolving Credit Facility            
Line of Credit Facility [Line Items]            
Event of default amount   0        
Principal payments due   0        
Jp Morgan Chase Bank | Revolving Credit Facility            
Line of Credit Facility [Line Items]            
Maximum borrowing capacity   25,000,000        
Maximum revolving commitment upon fulfillment of certain conditions (up to)   40,000,000        
Revolving loan payable   $ 7,986,000        
Aggregate principal amount of indebtedness permitted related to capital leases       $ 1,500,000 $ 1,000,000  
Unused credit commitment fee   0.25%        
Minimum availability required trigger amount (if less than)   $ 4,000,000        
Excess availability (greater than)   $ 5,000        
Number of consecutive days excess availability is above required amount   60 days        
Excess availability under credit facility   $ 11,798,000        
Minimum availability required under availability block   $ 2,000,000        
One-Month London Interbank Offered Rate (LIBOR) | Jp Morgan Chase Bank | Revolving Credit Facility            
Line of Credit Facility [Line Items]            
Applicable margin for LIBOR-based interest rate/ Applicable margin for alternate based rate   2.25%        
London Interbank Offered Rate (LIBOR) | Revolving Credit Facility            
Line of Credit Facility [Line Items]            
Interest rate   2.44%        
LIBOR based interest rate, principal   $ 7,900,000        
Base Rate | Revolving Credit Facility            
Line of Credit Facility [Line Items]            
Interest rate   3.50%        
Prime based rate, principal   $ 86,000        
Base Rate | Jp Morgan Chase Bank | Revolving Credit Facility            
Line of Credit Facility [Line Items]            
Applicable margin for LIBOR-based interest rate/ Applicable margin for alternate based rate   0.25%        
Scenario, Forecast | Jp Morgan Chase Bank | Revolving Credit Facility            
Line of Credit Facility [Line Items]            
Decrease to the applicable margin (up to) 0.50%          
Minimum availability required under availability block     $ 2,000,000      
Minimum fixed charge ratio if less than minimum excess availability 1.0