Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Stock-Based Compensation - Plan (Details) - USD ($)					12 Months Ended
Stock-Based Compensation - Plan (Details) - USD ($)	May 26, 2021	May 25, 2021	May 15, 2021	Apr. 29, 2021	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019	Jun. 02, 2021
Stock-based compensation
Income tax benefit from share-based compensation (in dollars)					$ 255,600	$ 386,100	$ 307,300
Number of shares available for grant (in shares)					528,709
Options Granted (in shares)					240,000	405,000
Performance Stock Units
Stock-based compensation
Cancelled (in shares)					33,113	52,532	25,437
Granted (in shares)						51,616	71,000
Selling, general and administrative expenses
Stock-based compensation
Stock-based compensation (in dollars)					$ 1,211,000	$ 1,174,600	$ 1,244,000
Subsequent Event
Stock-based compensation
Number of shares available for grant (in shares)								303,279
Options Granted (in shares)			187,500	187,500
Subsequent Event \| Performance Stock Units
Stock-based compensation
Granted (in shares)	96,603
Subsequent Event \| Restricted stock and RSUs
Stock-based compensation
Granted (in shares)				34,252
Subsequent Event \| RSUs
Stock-based compensation
Granted (in shares)		24,761		12,000
Subsequent Event \| Restricted stock awards
Stock-based compensation
Granted (in shares)				22,252