Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 02, 2017	Mar. 04, 2017
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 10,334
Estimated Fair Value	10,248
Municipal bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	10,334	$ 9,595
Gross Unrealized Gains	17	91
Gross Unrealized Losses	103	97
Estimated Fair Value	$ 10,248	$ 9,589

This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27161-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.2)
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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