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Derivative Instruments (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Sep. 27, 2020
Jun. 28, 2020
Sep. 29, 2019
Jun. 30, 2019
Sep. 27, 2020
Sep. 29, 2019
Mar. 29, 2020
Derivative [Line Items]              
Unrealized gain (loss) on interest rate swap $ (39) $ 10 $ 69 $ 179 $ (29) $ 248  
Fair Value, Inputs, Level 2 [Member]              
Derivative [Line Items]              
Derivative Instruments in Hedges, Liabilities, at Fair Value 69       69   $ 108
Interest Rate Swap [Member]              
Derivative [Line Items]              
Derivative, Notional Amount $ 20,000       $ 20,000