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Fair Value Measurements (Details) - USD ($) $ in Thousands | Mar. 04, 2017 | Feb. 27, 2016
--- | --- | ---
Cash equivalents |  |
Total cash equivalents | $ 9,923 | $ 52,973
Available for sale securities |  |
Total available for sale securities |  | 30,173
Long-term securities |  |
Total assets at fair value | 19,512 | 95,665
Money market funds |  |
Cash equivalents |  |
Total cash equivalents | 4,423 | 23,199
Commercial paper |  |
Cash equivalents |  |
Total cash equivalents | 5,500 | 29,774
Mutual fund |  |
Available for sale securities |  |
Total available for sale securities |  | 30,123
Municipal bonds |  |
Available for sale securities |  |
Total available for sale securities | 548 | 50
Long-term securities |  |
Total long-term securities | 9,041 | 12,519
Quoted Prices in Active Markets (Level 1) |  |
Cash equivalents |  |
Total cash equivalents | 4,423 | 23,199
Available for sale securities |  |
Total available for sale securities |  | 30,123
Long-term securities |  |
Total assets at fair value | 4,423 | 53,322
Quoted Prices in Active Markets (Level 1) | Money market funds |  |
Cash equivalents |  |
Total cash equivalents | 4,423 | 23,199
Quoted Prices in Active Markets (Level 1) | Commercial paper |  |
Cash equivalents |  |
Total cash equivalents | 0 | 0
Quoted Prices in Active Markets (Level 1) | Mutual fund |  |
Available for sale securities |  |
Total available for sale securities |  | 30,123
Quoted Prices in Active Markets (Level 1) | Municipal bonds |  |
Available for sale securities |  |
Total available for sale securities | 0 | 0
Long-term securities |  |
Total long-term securities | 0 | 0
Other Observable Inputs (Level 2) |  |
Cash equivalents |  |
Total cash equivalents | 5,500 | 29,774
Available for sale securities |  |
Total available for sale securities |  | 50
Long-term securities |  |
Total assets at fair value | 15,089 | 42,343
Other Observable Inputs (Level 2) | Money market funds |  |
Cash equivalents |  |
Total cash equivalents | 0 | 0
Other Observable Inputs (Level 2) | Commercial paper |  |
Cash equivalents |  |
Total cash equivalents | 5,500 | 29,774
Other Observable Inputs (Level 2) | Mutual fund |  |
Available for sale securities |  |
Total available for sale securities |  | 0
Other Observable Inputs (Level 2) | Municipal bonds |  |
Available for sale securities |  |
Total available for sale securities | 548 | 50
Long-term securities |  |
Total long-term securities | $ 9,041 | $ 12,519

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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=65884222&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26610-111562 + Details
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