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Fair Value Measurements (Tables) | 6 Months Ended
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Sep. 01, 2012
Fair Value Disclosures [Abstract] |
Financial assets and liabilities measured at fair value | Financial assets measured at fair value as of September 1, 2012 and March 3, 2012, are summarized below:
(In thousands) | Quoted Prices in Active Markets (Level 1) |  | Other Observable Inputs (Level 2) |  | Unobservable Inputs (Level 3) |  | Total Fair Value
September 1, 2012 |  |  |  |  |  |  |
Cash equivalents |  |  |  |  |  |  |
Money market funds | $ | 16,100 |  |  | $ | — |  |  | $ | — |  |  | $ | 16,100 |
Total cash equivalents | 16,100 |  |  | — |  |  | — |  |  | 16,100 |
Short-term marketable securities available for sale |  |  |  |  |  |  |
Municipal bonds | $ | — |  |  | $ | 25,091 |  |  | $ | — |  |  | $ | 25,091 |
Total short-term marketable securities available for sale | — |  |  | 25,091 |  |  | — |  |  | 25,091 |
Marketable securities available for sale |  |  |  |  |  |  |
Municipal bonds | $ | — |  |  | $ | 9,399 |  |  | $ | — |  |  | $ | 9,399 |
Total marketable securities available for sale | — |  |  | 9,399 |  |  | — |  |  | 9,399 |
Restricted investments |  |  |  |  |  |  |
Money market funds | $ | 31,073 |  |  | $ | — |  |  | $ | — |  |  | $ | 31,073 |
Total restricted investments | 31,073 |  |  | — |  |  | — |  |  | 31,073 |
Mutual fund investments |  |  |  |  |  |  |
Mutual funds | $ | 657 |  |  | $ | — |  |  | $ | — |  |  | $ | 657 |
Total mutual fund investments | 657 |  |  | — |  |  | — |  |  | 657 |
Total assets at fair value | $ | 47,830 |  |  | $ | 34,490 |  |  | $ | — |  |  | $ | 82,320 |
March 3, 2012 |  |  |  |  |  |  |
Cash equivalents |  |  |  |  |  |  |
Money market funds | $ | 46,141 |  |  | $ | — |  |  | $ | — |  |  | $ | 46,141 |
Total cash equivalents | 46,141 |  |  | — |  |  | — |  |  | 46,141 |
Short-term marketable securities available for sale |  |  |  |  |  |  |
Municipal bonds | $ | — |  |  | $ | 11,664 |  |  | $ | — |  |  | $ | 11,664 |
Total short-term marketable securities available for sale | — |  |  | 11,664 |  |  | — |  |  | 11,664 |
Marketable securities available for sale |  |  |  |  |  |  |
Municipal bonds | $ | — |  |  | $ | 7,936 |  |  | $ | — |  |  | $ | 7,936 |
Total marketable securities available for sale | — |  |  | 7,936 |  |  | — |  |  | 7,936 |
Restricted investments |  |  |  |  |  |  |
Money market funds | $ | 23,136 |  |  | $ | — |  |  | $ | — |  |  | $ | 23,136 |
Total restricted investments | 23,136 |  |  | — |  |  | — |  |  | 23,136 |
Mutual fund investments |  |  |  |  |  |  |
Mutual funds | $ | 1,150 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,150 |
Total mutual fund investments | 1,150 |  |  | — |  |  | — |  |  | 1,150 |
Total assets at fair value | $ | 70,427 |  |  | $ | 19,600 |  |  | $ | — |  |  | $ | 90,027 |

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- Definition Tabular disclosure related to assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a recurring and/or nonrecurring basis in periods after initial recognition. Disclosures include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3) as well as transfers between levels 1 and 2. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 6 -Footnote 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a,b,bb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2C -URI http://asc.fasb.org/extlink&oid=7578670&loc=SL7498348-110258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19279-110258 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19190-110258 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 33 -Subparagraph a, b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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