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Note 12 - Contingencies (Details Textual) $ in Millions | Oct. 31, 2020 USD ($)
--- | ---
Litigation Receivable, Gross | $ 4.5
Litigation Receivables, Reserve | 3.6
Litigation Receivables, Net | $ 0.9

X
- Definition The amount of receivables before reserves in a litigation dispute. + References No definition available. + Details
Name: | bbw_LitigationReceivableGross
Namespace Prefix: | bbw_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of receivables after reserve in a litigation dispute. + References No definition available. + Details
Name: | bbw_LitigationReceivablesNet
Namespace Prefix: | bbw_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of reserve receivables in a litigation dispute. + References No definition available. + Details
Name: | bbw_LitigationReceivablesReserve
Namespace Prefix: | bbw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant