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REVENUE (Details) - USD ($)
$ in Thousands
Jun. 28, 2020
Sep. 27, 2019
Jun. 28, 2019
Dec. 28, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Contract with customer, asset $ 1,082   $ 1,170  
Contract with customer, liability 5,409 $ 4,440 6,243  
Topic 606        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Contract with customer, asset       $ 763
Contract with customer, liability       $ 2,725
Accrued Discounts And Returns        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Contract with customer, liability $ 3,207   $ 3,729