The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The amount of net income (loss) reported by an equity method investment of the entity.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Investment in Unconsolidated Joint Venture - Narrative (Detail) - USD ($)	3 Months Ended					12 Months Ended
	Apr. 29, 2018	Jan. 28, 2018	Oct. 29, 2017	Jul. 30, 2017	Apr. 30, 2017	Apr. 29, 2018	Apr. 30, 2017	Jan. 01, 2017
Schedule of Equity Method Investments [Line Items]
Loss from investment in unconsolidated joint venture	$ (17,000)	$ (56,000)	$ (75,000)	$ (118,000)	$ (23,000)	$ (266,000)	$ (23,000)
CLIH [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%					50.00%		50.00%
Unconsolidated joint venture, net loss						$ (532,000)	(46,000)
Loss from investment in unconsolidated joint venture						$ (266,000)	$ (23,000)