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ENTITY-WIDE DISCLOSURES (Major customers as a percentage of net sales) (Details)
 12 Months Ended
Jan. 02, 2022
Jan. 03, 2021
Customer A    
Disclosure of major customers [line items]    
Percentage of total net sales 15.90% 12.30%
Customer B    
Disclosure of major customers [line items]    
Percentage of total net sales 13.90% 13.10%
Customer C    
Disclosure of major customers [line items]    
Percentage of total net sales 7.90% 10.40%