Summary of Significant Accounting Policies - Revenue Recognition, Expenses and Shipping and Handling Costs (Details) - USD ($)	12 Months Ended
Mar. 29, 2020	Mar. 31, 2019	Apr. 01, 2018
Shipping and Handling Costs
Shipping and handling costs	$ 13,869,500	$ 16,534,200	$ 14,875,100
Income Taxes
Cumulative amount of interest and penalties related to tax uncertainties, net of federal expense (benefit)	$ 0	$ 0	$ 250,500
Maximum
Revenue Recognition
Revenue recorded on net fee basis (as a percent)	1.00%
Service revenue (as a percent)	1.00%	1.00%	1.00%

The percentage of net revenue to total revenue recorded where the company is not the principle.

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- Definition

The percentage of net service revenue to total revenue from the sale of services as of yearend.

+ References

No definition available.

+ Details

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No definition available.

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- Definition

Cost incurred during the reporting period in packing and transport of product classified as selling, general and administrative expenses.

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No definition available.

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No definition available.

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- Definition

Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319

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