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Fair Value Measurements (Tables) | 9 Months Ended
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Jan. 23, 2016
Fair Value Measurements |
Fair value hierarchy for assets measured at fair value on a recurring basis | At January 23, 2016
|  | Fair Value Measurements |
(Unaudited, amounts in thousands) |  | Level 1(a) |  | Level 2(a) |  | Level 3 |
Assets |  |  |  |  |  |  |
Available-for-sale securities |  | $ | 1,231 |  | $ | 42,983 |  | $ | — |
(a)There were no transfers between Level 1 and Level 2 during fiscal 2016. At April 25, 2015
|  | Fair Value Measurements |
(Unaudited, amounts in thousands) |  | Level 1(b) |  | Level 2(b) |  | Level 3 |
Assets |  |  |  |  |  |  |
Available-for-sale securities |  | $ | 1,552 |  | $ | 58,516 |  | $ | — |
Trading securities |  | — |  | 1,127 |  | — |
Total |  | $ | 1,552 |  | $ | 59,643 |  | $ | — |
(b)There were no transfers between Level 1 and Level 2 during fiscal 2015.

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + 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),(b) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 Reference 2: 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=36462937&loc=d3e19190-110258 + Details
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