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Profit Sharing, Employee Stock Ownership, Employee Stock Purchase and Pension Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Defined Contribution Plan Disclosure [Line Items]
Profit sharing	$ 994	$ 631	$ 899
401(k) matching contributions	2,650	2,399	2,390
ESOP	994	631	899
Nonqualified deferred compensation plan	1,327	1,262	1,246
ESPP - all employees	556	431	376
Total contribution expense	7,076	5,835	6,284
Bargaining Unit Employee Plans [Member]
Defined Contribution Plan Disclosure [Line Items]
Bargaining unit employee plans	$ 555	$ 481	$ 474

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- Definition

Defined Contribution Plan, Employer Matching Contribution Amount

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- Definition

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- Definition

Profit Sharing, Employee Stock Ownership Plan, Employee Stock Purchase Plan and Defined Contribution Pension Plan Contribution Expense

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- Definition

Amount of contributions made by employer into fund established for purposes of making future disbursement to individual in accordance with deferred compensation arrangement.

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- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

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- Definition

The amount of plan compensation cost recognized during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
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