Note 13 - Proforma Results (Details) - Hill & Valley Inc. [Member] - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 25, 2017	Mar. 26, 2016	Mar. 25, 2017	Mar. 26, 2016
Net Sales	$ 247,462	$ 240,195	$ 485,995	$ 473,569
Net Earnings	$ 15,999	$ 15,979	$ 30,003	$ 29,247

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration