Profit Sharing, Employee Stock Ownership, Employee Stock Purchase and Pension Plans -Textual (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 29, 2020	Mar. 31, 2019	Apr. 01, 2018
Defined Contribution Plan Disclosure [Line Items]
Multi Employer Pension Plan Withdrawal Liability Payment Over Period of Years	$ 467
Common Stock [Member]
Defined Contribution Plan Disclosure [Line Items]
ESPP shares issued (shares)	38,550	43,678	41,304
401 (k) plan [Member] | Qualified Plan [Member] | Maximum [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	5.00%
Deferred Profit Sharing [Member] | Qualified Plan [Member] | Minimum [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	2.50%	2.50%	2.50%
Deferred Profit Sharing [Member] | Qualified Plan [Member] | Maximum [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	5.00%	5.00%	5.00%
Deferred Profit Sharing [Member] | Nonqualified Plan [Member] | Maximum [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	10.00%	10.00%	10.00%
Employee Stock Ownership Plan (ESOP), Plan [Domain] | Qualified Plan [Member] | Minimum [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	2.50%	2.50%	2.50%
Employee Stock Ownership Plan (ESOP), Plan [Domain] | Qualified Plan [Member] | Maximum [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	5.00%	5.00%	5.00%
Bargaining Unit Employee Plans [Member] | Deferred Profit Sharing [Member] | Qualified Plan [Member] | Minimum [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	2.50%
Bargaining Unit Employee Plans [Member] | Deferred Profit Sharing [Member] | Qualified Plan [Member] | Maximum [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	5.00%