Income Taxes - Allocation of Income Tax Expense (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jan. 31, 2021	Feb. 02, 2020	Jan. 31, 2021	Feb. 02, 2020
Income Tax Disclosure [Abstract]
Income from continuing operations	$ 899	$ 1,619	$ 6,836	$ 5,590
Loss from discontinued operations		$ (2,592)		(2,984)
Total income tax expense			$ 6,836	$ 2,606

Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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+ Details

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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