Quarterly report pursuant to Section 13 or 15(d)

Borrowings (Details)

v3.20.2
Borrowings (Details)
9 Months Ended
Sep. 26, 2020
USD ($)
JP Morgan Chase Bank | Revolving Credit Facility  
Line of Credit Facility [Line Items]  
Maximum borrowing capacity (up to) $ 30,000,000
Revolving loan payable $ 0
Unused credit commitment fee (percent) 0.25%
Credit facility trigger amount $ 3,600,000
Consecutive business days below minimum excess availability 3 days
Number of consecutive days excess availability is above required amount 45 days
Event of default amount $ 0
Minimum availability required under availability block $ 3,000,000
Minimum fixed charge ratio if less than minimum excess availability 1.0
Excess availability under credit facility $ 22,519,000
Principal payments due 0
JP Morgan Chase Bank | Letter of Credit  
Line of Credit Facility [Line Items]  
Maximum borrowing capacity (up to) 1,550,000
Outstanding letters of credit amount $ 0
One-Month London Interbank Offered Rate (LIBOR) | Revolving Credit Facility  
Line of Credit Facility [Line Items]  
Applicable margin for LIBOR-based interest rate and applicable margin for alternate based rate (percent) 1.25%
Base Rate | Revolving Credit Facility  
Line of Credit Facility [Line Items]  
Applicable margin for LIBOR-based interest rate and applicable margin for alternate based rate (percent) 1.75%
Base Rate | JP Morgan Chase Bank | Revolving Credit Facility  
Line of Credit Facility [Line Items]  
Interest rate (percent) 3.00%
LIBOR based interest rate, principal amount $ 0
London Interbank Offered Rate (LIBOR) | JP Morgan Chase Bank | Revolving Credit Facility  
Line of Credit Facility [Line Items]  
Interest rate (percent) 1.44%
LIBOR based interest rate, principal amount $ 0
Prime rate | Revolving Credit Facility | Maximum  
Line of Credit Facility [Line Items]  
Applicable margin for LIBOR-based interest rate and applicable margin for alternate based rate (percent) 0.25%
Prime rate | Revolving Credit Facility | Minimum  
Line of Credit Facility [Line Items]  
Applicable margin for LIBOR-based interest rate and applicable margin for alternate based rate (percent) 0.75%