Summary of Significant Accounting Policies (Advertising, Freight and Other Income) (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 28, 2020	Mar. 30, 2019	Mar. 31, 2018
Advertising costs	$ 900	$ 837	$ 1,100
Freight
Cost of Goods and Services Sold	$ 30,900	$ 28,900	$ 27,300

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2(a),(d))
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration