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Geographic Information (Revenue from External Customers by Geographic Areas) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Oct. 18, 2015	Oct. 24, 2014	Oct. 18, 2015	Oct. 24, 2014
Schedule of Revenues From External Customers By Geographic Area [Line Items]
Net sales	$ 67,520,767	$ 73,417,194	$ 148,531,567	$ 145,421,160
United States [Member]
Schedule of Revenues From External Customers By Geographic Area [Line Items]
Net sales	58,353,245	59,938,644	126,080,253	118,776,843
International [Member]
Schedule of Revenues From External Customers By Geographic Area [Line Items]
Net sales	$ 9,167,522	$ 13,478,550	$ 22,451,314	$ 26,644,317

X

- Definition

Schedule of Revenues From External Customers By Geographic Area [Line Items]

+ References

No definition available.

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 225



-SubTopic 10



-Section S99



-Paragraph 2



-Subparagraph (SX 210.5-03.1)



-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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