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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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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

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Stock-Based Compensation - Plan (Details) - USD ($)		1 Months Ended	12 Months Ended
Stock-Based Compensation - Plan (Details) - USD ($)	May 10, 2019	May 30, 2019	Mar. 31, 2019	Apr. 01, 2018	Mar. 26, 2017
Stock-based compensation
Income tax benefit from share-based compensation (in dollars)			$ 297,300	$ 305,400	$ 181,900
Options Granted (in shares)			66,500	230,000
Performance Stock Units
Stock-based compensation
Cancelled (in shares)			25,437	181,500	148,154
Granted (in shares)			71,000	86,000	207,000
RSU awards
Stock-based compensation
Granted (in shares)			2,000
1994 Plan
Stock-based compensation
Number of shares available for grant (in shares)			247,200
Selling, general and administrative expenses
Stock-based compensation
Stock-based compensation (in dollars)			$ 1,244,000	$ 1,002,100	$ 434,400
Subsequent Event
Stock-based compensation
Options Granted (in shares)	135,000
Subsequent Event \| Performance Stock Units
Stock-based compensation
Cancelled (in shares)	21,750	24,000
Granted (in shares)	45,500
Subsequent Event \| RSU awards
Stock-based compensation
Granted (in shares)	21,000
Subsequent Event \| 1994 Plan
Stock-based compensation
Number of shares available for grant (in shares)	67,450