Stock-Based Compensation - Plan (Details) - USD ($)	12 Months Ended
Mar. 27, 2022	Mar. 28, 2021	Mar. 29, 2020
Stock-based compensation
Income tax benefit from share-based compensation (in dollars)	$ 365,500	$ 255,600	$ 386,100
Number of shares available for grant (in shares)	344,371
Options Granted (in shares)	194,500	240,000
Performance Stock Units
Stock-based compensation
Cancelled (in shares)	2,186	33,113	52,532
Granted (in shares)	96,603		51,616
Selling, general and administrative expenses
Stock-based compensation
Stock-based compensation (in dollars)	$ 1,338,900	$ 1,211,000	$ 1,174,600

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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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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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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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Gross number of share options (or share units) granted during the period.

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