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LINE OF CREDIT (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Mar. 28, 2020
Jul. 03, 2021
Line of Credit Facility [Line Items]    
Credit facility with a bank   $ 40
Description of interest rate of credit facility   LIBOR
Line of credit interest rate (in percent)   0.10%
Line of credit unused portion per year (in percent)   0.25%
Revolving credit facility, expiration date   Sep. 30, 2021
Proceeds from line of credit $ 1  
Revolving Line Of Credit Facility [Member]    
Line of Credit Facility [Line Items]    
Line of credit basis points   1.50%