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DERIVATIVE FINANCIAL INSTRUMENTS (Details) - Cash flow hedge - USD ($)
$ in Millions
12 Months Ended
Jan. 01, 2021
Dec. 27, 2019
Jan. 31, 2019
Derivative [Line Items]      
Effective portion of interest rate swap designated as cash flow hedge before tax effect   $ 0.5  
Interest swap agreement      
Derivative [Line Items]      
Notional amount     $ 35.0
Fixed rate (in percent)     2.47%
Interest swap agreement | Forecast      
Derivative [Line Items]      
Accumulated other comprehensive income to interest expense $ 0.4