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Investment in Unconsolidated Joint Venture - Narrative (Detail) - USD ($) | 3 Months Ended |
--- | --- | ---
Aug. 04, 2019 | Jul. 29, 2018 | Apr. 28, 2019
Schedule of Equity Method Investments [Line Items] |  |  |  |
Income (loss) from investment in unconsolidated joint venture | $ 13,000 | $ (77,000) |  |
Investment in unconsolidated joint venture | 1,520,000 | 1,525,000 | $ 1,508,000 | [1]
CLIH [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Unconsolidated joint venture, net Income (loss) | 26,000 | (154,000) |  |
Income (loss) from investment in unconsolidated joint venture | 13,000 | (77,000) |  |
Investment in unconsolidated joint venture | $ 1,500,000 | $ 1,500,000 | $ 1,500,000 |
[1] | Derived from audited financial statements.

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