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Marketable Securities | 6 Months Ended
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Oct. 26, 2013
Marketable Securities [Abstract] |
Marketable Securities | Marketable Securities We have a cash management program which provides for the investment of cash balances not used in current operations. We classify our investments in marketable securities as available-for-sale in accordance with the provisions of ASC 320, Investments – Debt and Equity Securities. Marketable securities classified as available-for-sale are reported at fair value with unrealized gains or losses, net of tax, reported in accumulated other comprehensive income (loss). As it relates to fixed income marketable securities, we do not intend to sell any of these investments, and it is not more-likely-than-not we will be required to sell any of these investments before recovery of the entire amortized cost basis. In addition, as of October 26, 2013, we anticipate we will recover the entire amortized cost basis of such fixed income securities, and we have determined no other-than-temporary impairments associated with credit losses were required to be recognized. The cost of securities sold is based on the specific identification method. Where quoted market prices are not available, we use the market price of similar types of securities traded in the market to estimate fair value. As of October 26, 2013 and April 27, 2013, our available-for-sale securities consisted of the following:
| Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Fair Value
Balance as of October 26, 2013: |  |  |  |  |  |  |
Certificates of deposit | $ | 5,667 |  |  | $ | — |  |  | $ | — |  |  | $ | 5,667 |
U.S. Government securities | 5,000 |  |  | 5 |  |  | — |  |  | 5,005 |
U.S. Government sponsored entities | 5,051 |  |  | — |  |  | — |  |  | 5,051 |
Municipal obligations | 9,640 |  |  | 4 |  |  | — |  |  | 9,644 |
| $ | 25,358 |  |  | $ | 9 |  |  | $ | — |  |  | $ | 25,367 |
Balance as of April 27, 2013: |  |  |  |  |  |  |  |  |  |  |
Certificates of deposit | $ | 4,677 |  |  | $ | — |  |  | $ | — |  |  | $ | 4,677 |
U.S. Government securities | 4,999 |  |  | 19 |  |  | — |  |  | 5,018 |
U.S. Government sponsored entities | 4,752 |  |  | — |  |  | — |  |  | 4,752 |
Municipal obligations | 9,596 |  |  | 9 |  |  | — |  |  | 9,605 |
| $ | 24,024 |  |  | $ | 28 |  |  | $ | — |  |  | $ | 24,052 |
Realized gains or losses on investments are recorded in our consolidated statements of operations as other income (expense), net. Upon the sale of a security classified as available-for-sale, the security’s specific unrealized gain (loss) is reclassified out of "accumulated other comprehensive income (loss)” and into earnings based on the specific identification method. In the six months ended October 26, 2013 and October 27, 2012, the reclassifications from accumulated other comprehensive income (loss) to net assets were immaterial. Realized gains and losses on sales or maturities of investments were immaterial in the six months ended October 26, 2013 and October 27, 2012. All available-for-sale securities are classified as current assets, as they are readily available to support our current operating needs. The contractual maturities of available-for-sale debt securities as of October 26, 2013 were as follows:
| Less than 12 months |  | Greater than 12 months |  | Total
Certificates of deposit | $ | 3,696 |  |  | $ | 1,971 |  |  | $ | 5,667 |
U.S. Government securities | 3,505 |  |  | 1,500 |  |  | 5,005 |
U.S. Government sponsored entities | — |  |  | 5,051 |  |  | 5,051 |
Municipal obligations | 4,598 |  |  | 5,046 |  |  | 9,644 |
| $ | 11,799 |  |  | $ | 13,568 |  |  | $ | 25,367 |

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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -Glossary Debt Security -URI http://asc.fasb.org/extlink&oid=6509901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27405-111563 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -Glossary Equity Security -URI http://asc.fasb.org/extlink&oid=6511694 + Details
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