Retirement Plans - Supplemental Plan (Details) - USD ($)	12 Months Ended
	Mar. 27, 2022	Mar. 28, 2021
Defined Benefit Plan
Plan type	us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember	us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember
Other long-term assets
Defined Benefit Plan
Cash surrender value of life insurance policy	$ 2,652,700	$ 2,680,700
Other long-term liabilities
Defined Benefit Plan
Net present value of benefit obligation	$ 753,200	$ 809,400