Pineland Acquisition - Schedule of Operating Results (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Oct. 27, 2017	Oct. 28, 2016	Oct. 27, 2017	Oct. 28, 2016
Business Acquisition [Line Items]
Net Sales	$ 117,626	$ 96,158	$ 226,891	$ 182,099
Operating Income	$ 2,643	$ (4,768)	13,721	$ 3,498
Pineland Farms Potato Company, Inc.
Business Acquisition [Line Items]
Net Sales			18,052
Operating Income			$ 2,869

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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=63488584&loc=d3e20235-122688

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