Stock Buyback (Details) - USD ($)	12 Months Ended
Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Stock Buyback
Tax withholding for share based compensation	$ 121,500	$ 201,000	$ 111,100

Amount of decrease to equity for grantee's tax withholding obligation for award under share-based payment arrangement.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration