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Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified | Aug. 30, 2014 | Mar. 01, 2014
--- | --- | ---
Cash equivalents |  |
Total cash equivalents | $ 20,099 | $ 12,788
Available for sale securities |  |
Available-for-sale Securities | 6,869 | 11,477
Restricted investments |  |
Total restricted investments | 947 | 2,540
Mutual fund investments |  |
Total mutual fund investments | 304 | 409
Derivative Instruments and Hedges, Assets [Abstract] |  |
Foreign Currency Contract, Asset, Fair Value Disclosure |  | 98
Total assets at fair value | 28,219 | 27,312
Money market funds [Member] |  |
Cash equivalents |  |
Total cash equivalents | 20,099 | 12,788
Restricted investments |  |
Total restricted investments | 947 | 2,540
Municipal bonds [Member] |  |
Available for sale securities |  |
Available-for-sale Securities | 6,869 | 11,477
Mutual funds [Member] |  |
Mutual fund investments |  |
Total mutual fund investments | 304 | 409
Foreign Exchange Contract [Member] |  |
Derivative Instruments and Hedges, Assets [Abstract] |  |
Foreign Currency Contract, Asset, Fair Value Disclosure |  | 98
Quoted Prices in Active Markets (Level 1) [Member] |  |
Cash equivalents |  |
Total cash equivalents | 20,099 | 12,788
Available for sale securities |  |
Available-for-sale Securities | 0 | 0
Restricted investments |  |
Total restricted investments | 947 | 2,540
Mutual fund investments |  |
Total mutual fund investments | 304 | 409
Derivative Instruments and Hedges, Assets [Abstract] |  |
Foreign Currency Contract, Asset, Fair Value Disclosure |  | 0
Total assets at fair value | 21,350 | 15,737
Quoted Prices in Active Markets (Level 1) [Member] | Money market funds [Member] |  |
Cash equivalents |  |
Total cash equivalents | 20,099 | 12,788
Restricted investments |  |
Total restricted investments | 947 | 2,540
Quoted Prices in Active Markets (Level 1) [Member] | Municipal bonds [Member] |  |
Available for sale securities |  |
Available-for-sale Securities | 0 | 0
Quoted Prices in Active Markets (Level 1) [Member] | Mutual funds [Member] |  |
Mutual fund investments |  |
Total mutual fund investments | 304 | 409
Quoted Prices in Active Markets (Level 1) [Member] | Foreign Exchange Contract [Member] |  |
Derivative Instruments and Hedges, Assets [Abstract] |  |
Foreign Currency Contract, Asset, Fair Value Disclosure |  | 0
Other Observable Inputs (Level 2) [Member] |  |
Cash equivalents |  |
Total cash equivalents | 0 | 0
Available for sale securities |  |
Available-for-sale Securities | 6,869 | 11,477
Restricted investments |  |
Total restricted investments | 0 | 0
Mutual fund investments |  |
Total mutual fund investments | 0 | 0
Derivative Instruments and Hedges, Assets [Abstract] |  |
Foreign Currency Contract, Asset, Fair Value Disclosure |  | 98
Total assets at fair value | 6,869 | 11,575
Other Observable Inputs (Level 2) [Member] | Money market funds [Member] |  |
Cash equivalents |  |
Total cash equivalents | 0 | 0
Restricted investments |  |
Total restricted investments | 0 | 0
Other Observable Inputs (Level 2) [Member] | Municipal bonds [Member] |  |
Available for sale securities |  |
Available-for-sale Securities | 6,869 | 11,477
Other Observable Inputs (Level 2) [Member] | Mutual funds [Member] |  |
Mutual fund investments |  |
Total mutual fund investments | 0 | 0
Other Observable Inputs (Level 2) [Member] | Foreign Exchange Contract [Member] |  |
Derivative Instruments and Hedges, Assets [Abstract] |  |
Foreign Currency Contract, Asset, Fair Value Disclosure |  | $ 98

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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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=28360136&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=27724398&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=6871852&loc=d3e26610-111562 + Details
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 + Details
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- Definition The aggregate value of all restricted investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-12C.9(c)) -URI http://asc.fasb.org/extlink&oid=6955306&loc=d3e611225-123010 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12.6(c)) -URI http://asc.fasb.org/extlink&oid=6955306&loc=d3e611133-123010 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12C -Paragraph 9 -Subparagraph c -Article 12 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Paragraph 6 -Subparagraph c -Article 12 + Details
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- Definition Amount of investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading. + References Reference 1: 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=6871852&loc=d3e26610-111562 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26626-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.4) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Trading Securities -URI http://asc.fasb.org/extlink&oid=6526789 + Details
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