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Income Taxes - Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Mar. 27, 2020
Jan. 02, 2021
Operating Loss Carryforwards [Line Items]    
Unrecognized tax benefits before adjustments   $ 0.2
Unrecognized tax benefits being recognized as a reduction to the effective income tax rate   0.2
Amount of unrecognized tax benefits that was expected to be reversed within the next twelve months   0.2
Deferred tax liability recognized, undistributed foreign earnings   0.3
Deferred tax liability - CARES Act   2.7
Leasehold improvements    
Operating Loss Carryforwards [Line Items]    
Income tax receivable impacted by CARES Act $ 2.2  
Estimated useful lives (in years) 39 years  
United Kingdom    
Operating Loss Carryforwards [Line Items]    
Deferred tax liability recognized, undistributed foreign earnings   0.1
U.S. and Foreign    
Operating Loss Carryforwards [Line Items]    
Net operating loss carryforwards   $ 1.3
U.S. and Foreign | Minimum    
Operating Loss Carryforwards [Line Items]    
Deferred tax asset carry forward period (in years)   20 years