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Note 4 - Leases (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
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Jan. 29, 2022 | Jan. 30, 2021
Lessee, Operating Lease, Rent Deferrals Liability, Payments Remainder of Fiscal Year | $ 0 |
Operating Lease, Weighted Average Remaining Lease Term (Year) | 4 years 3 months 18 days |
Operating Lease, Weighted Average Discount Rate, Percent | 6.00% |
Operating Lease, Impairment Loss | $ 0 | $ 3,800
Lessee, Operating Lease, Lease Not yet Commenced, Amount | $ 0 |

X
- Definition Amount of lessee's operating lease not yet commence. + References No definition available. + Details
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Namespace Prefix: | bbw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of lessee's undiscounted obligation for prior fiscal year operating lease payments due and to be paid during remainder of current fiscal year. + References No definition available. + Details
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Namespace Prefix: | bbw_
Data Type: | xbrli:monetaryItemType
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X
- Definition Amount of loss from impairment of right-of-use asset from operating lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 25 -Paragraph 6 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123399704&loc=SL77918431-209957 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Weighted average discount rate for operating lease calculated at point in time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(4) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 + Details
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X
- Definition Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(3) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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