Note 16 - Commitments and Contingencies - Asbestos Related Lawsuits and Claims (Details) - Asbestos Related Lawsuits And Claims [Member] $ in Thousands	9 Months Ended	36 Months Ended
Sep. 02, 2017 USD ($)	Aug. 27, 2016 USD ($)	Dec. 03, 2016 USD ($)
Lawsuits and claims settled	7	9	33
Settlement amounts	$ 1,605	$ 978	$ 3,061
Insurance payments received or expected to be received	$ 1,312	$ 645	$ 2,253

Amount of receivable related to a loss contingency accrual. For example, an insurance recovery receivable.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=82913245&loc=d3e12053-110248

Name:	us-gaap_LossContingencyReceivable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant