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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - Sales Revenue, Net - Geographic Concentration Risk
6 Months Ended
Jun. 27, 2021
Jun. 28, 2020
Tennessee    
Revenue, Major Customer [Line Items]    
Concentration risk, percentage 11.00% 15.00%
Texas    
Revenue, Major Customer [Line Items]    
Concentration risk, percentage 28.00% 23.00%