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Fair Value of Financial Instruments (Tables) | 9 Months Ended
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Jan. 29, 2017
Fair Value Disclosures [Abstract] |
Schedule of Assets Measured at Fair Value on a Recurring Basis | The following table presents information about assets measured at fair value on a recurring basis:
|  | Fair value measurements at January 29, 2017 using: |
|  | Quoted prices in active markets for identical assets |  |  | Significant other observable inputs |  |  | Significant unobservable inputs |  |  |  |
(amounts in thousands) |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Assets: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Corporate Bonds |  | $ | - |  |  | $ | 30,682 |  |  |  | N/A |  |  | $ | 30,682 |
Premier Money Market Fund |  |  | 4,888 |  |  |  | N/A |  |  |  | N/A |  |  |  | 4,888 |
Low Duration Bond Fund |  |  | 1,073 |  |  |  | N/A |  |  |  | N/A |  |  |  | 1,073 |
Intermediate Term Bond Fund |  |  | 739 |  |  |  | N/A |  |  |  | N/A |  |  |  | 739 |
Strategic Income Fund |  |  | 598 |  |  |  | N/A |  |  |  | N/A |  |  |  | 598 |
Large Blend Fund |  |  | 343 |  |  |  | N/A |  |  |  | N/A |  |  |  | 343 |
Growth Allocation Fund |  |  | 113 |  |  |  | N/A |  |  |  | N/A |  |  |  | 113 |
Moderate Allocation Fund |  |  | 83 |  |  |  | N/A |  |  |  | N/A |  |  |  | 83 |
Other |  |  | 61 |  |  |  | N/A |  |  |  | N/A |  |  |  | 61 |
|  | Fair value measurements at January 31, 2016 using: |
|  | Quoted prices in active markets for identical assets |  |  | Significant other observable inputs |  |  | Significant unobservable inputs |  |  |  |
(amounts in thousands) |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Assets: |  |  |  |  |  |  |  |  |  |  |  |
Premier Money Market Fund |  | $ | 3,071 |  |  |  | N/A |  |  |  | N/A |  |  | $ | 3,071 |
Low Duration Bond Fund |  |  | 1,592 |  |  |  | N/A |  |  |  | N/A |  |  |  | 1,592 |
Intermediate Term Bond Fund |  |  | 1,116 |  |  |  | N/A |  |  |  | N/A |  |  |  | 1,116 |
Strategic Income Fund |  |  | 957 |  |  |  | N/A |  |  |  | N/A |  |  |  | 957 |
Limited Term Bond Fund |  |  | 594 |  |  |  | N/A |  |  |  | N/A |  |  |  | 594 |
Large Blend Fund |  |  | 254 |  |  |  | N/A |  |  |  | N/A |  |  |  | 254 |
Growth Allocation Fund |  |  | 128 |  |  |  | N/A |  |  |  | N/A |  |  |  | 128 |
Mid Cap Value Fund |  |  | 90 |  |  |  | N/A |  |  |  | N/A |  |  |  | 90 |
Other |  |  | 47 |  |  |  | N/A |  |  |  | N/A |  |  |  | 47 |
|  | Fair value measurements at May 1, 2016 using: |
|  | Quoted prices in active markets for identical assets |  |  | Significant other observable inputs |  |  | Significant unobservable inputs |  |  |  |
(amounts in thousands) |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Assets: |  |  |  |  |  |  |  |  |  |  |  |
Premier Money Market Fund |  | $ | 3,404 |  |  |  | N/A |  |  |  | N/A |  |  | $ | 3,404 |
Low Duration Bond Fund |  |  | 1,604 |  |  |  | N/A |  |  |  | N/A |  |  |  | 1,604 |
Intermediate Term Bond Fund |  |  | 1,154 |  |  |  | N/A |  |  |  | N/A |  |  |  | 1,154 |
Strategic Income Fund |  |  | 999 |  |  |  | N/A |  |  |  | N/A |  |  |  | 999 |
Limited Term Bond Fund |  |  | 602 |  |  |  | N/A |  |  |  | N/A |  |  |  | 602 |
Large Blend Fund |  |  | 289 |  |  |  | N/A |  |  |  | N/A |  |  |  | 289 |
Growth Allocation Fund |  |  | 148 |  |  |  | N/A |  |  |  | N/A |  |  |  | 148 |
Mid Cap Value Fund |  |  | 102 |  |  |  | N/A |  |  |  | N/A |  |  |  | 102 |
Other |  |  | 82 |  |  |  | N/A |  |  |  | N/A |  |  |  | 82 |

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, 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 1 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 + Details
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