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Note 10 - Contingencies (Details Textual) $ in Millions	Sep. 30, 2017 USD ($)
Litigation Receivable, Gross	$ 3.5
Litigation Receivables, Reserve	2.8
Litigation Receivables, Net	$ 0.7

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