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Income Taxes - Additional Information (Detail) - USD ($) | 3 Months Ended |
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May 02, 2020 | Aug. 03, 2019 | May 04, 2019 | Jan. 31, 2020
Income Tax Disclosure [Abstract] |  |  |  |
Income tax expense | $ (118,000) |  | $ 400,000 |
Income tax benefit from windfall of stock |  | $ 78,000 | 97,000 |
Expiration of the statue of limitations on previously uncertain tax positions |  |  | $ 53,000 |
Cumulative unrecognized tax benefits | 319,000 |  |  | $ 362,000
Changes to unrecognized tax benefits | $ 0 |  |  |

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324 + Details
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