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Income Taxes - Unrecognized tax benefits (Details) - USD ($)
12 Months Ended
Mar. 27, 2022
Mar. 28, 2021
Mar. 29, 2020
Income Taxes      
Unrecognized tax benefits $ 0 $ 0  
Amount of interest and penalties expense (benefit) related to tax uncertainties recognized, net of federal expense/benefit 0 0 $ 0
Cumulative amount of interest and penalties related to tax uncertainties $ 0 $ 0