Quarterly report pursuant to Section 13 or 15(d)

Borrowings (Details)

v3.19.1
Borrowings (Details) - JP Morgan Chase Bank
 3 Months Ended
Mar. 30, 2019
USD ($)
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 60 days
Event of default amount $ 0
Minimum availability required under availability block $ 2,400,000
Minimum fixed charge ratio if less than minimum excess availability 1.0
Excess availability under credit facility $ 8,864,000
Principal payments due 0
Letter of Credit  
Line of Credit Facility [Line Items]  
Maximum borrowing capacity (up to) 16,371,000
Outstanding letters of credit amount $ 12,482,000
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) 1.75%
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) 0.25%
Interest rate (percent) 5.25%
LIBOR based interest rate, principal amount $ 0
London Interbank Offered Rate (LIBOR) | Revolving Credit Facility  
Line of Credit Facility [Line Items]  
Interest rate (percent) 4.25%
LIBOR based interest rate, principal amount $ 0