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Fair Value - Recurring Basis (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Nov. 01, 2020	May 03, 2020	Nov. 03, 2019
Premier Money Market Fund [Member]
Assets:
Investments at fair value	$ 7,665	$ 7,496	$ 7,133
Other [Member]
Assets:
Investments at fair value	67	56	88
Short Term Bond Funds [Member]
Assets:
Investments at fair value	5,462	923
Growth Allocation Fund [Member]
Assets:
Investments at fair value	255	219	222
Moderate Allocation Fund [Member]
Assets:
Investments at fair value	73	63	132
Quoted prices in active markets for identical assets - Level 1 [Member] | Premier Money Market Fund [Member]
Assets:
Investments at fair value	7,665	7,496	7,133
Quoted prices in active markets for identical assets - Level 1 [Member] | Other [Member]
Assets:
Investments at fair value	67	56	88
Quoted prices in active markets for identical assets - Level 1 [Member] | Short Term Bond Funds [Member]
Assets:
Investments at fair value	5,462	923
Quoted prices in active markets for identical assets - Level 1 [Member] | Growth Allocation Fund [Member]
Assets:
Investments at fair value	255	219	222
Quoted prices in active markets for identical assets - Level 1 [Member] | Moderate Allocation Fund [Member]
Assets:
Investments at fair value	$ 73	$ 63	$ 132

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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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