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CONCENTRATION OF RISK (Details)
12 Months Ended
Dec. 28, 2019
USD ($)
Customer
Dec. 29, 2018
Customer
Aug. 30, 2019
USD ($)
Term Loan [Member] | Interest Rate Swap [Member]      
Interest Rate Risk [Abstract]      
Interest rate swap, notional amount | $ $ 50,000,000   $ 50,000,000
Term Loan [Member] | LIBOR [Member]      
Interest Rate Risk [Abstract]      
Term of variable rate 3 months    
Term Loan [Member] | LIBOR [Member] | Minimum [Member]      
Interest Rate Risk [Abstract]      
Basis spread on variable rate 1.25%    
Term Loan [Member] | LIBOR [Member] | Maximum [Member]      
Interest Rate Risk [Abstract]      
Basis spread on variable rate 2.25%    
Accounts Receivable [Member] | Customer Concentration Risk [Member]      
Accounts Receivable, Net [Abstract]      
Number of major customers | Customer 1 0  
Threshold percentage of concentration risk 10.00% 10.00%