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Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended
	May 01, 2021	May 02, 2020	Jan. 31, 2021
Income tax expense (benefit)	$ 227,000	$ 118,000
Changes to unrecognized tax benefits	0
Cumulative unrecognized tax benefits	221,000		$ 384,000
Tax benefit related to the reversal of previously uncertain tax positions	276,000	118,000
Tax expense resulting from shortfall	$ 37,000	$ 78,000

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

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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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