Note 10 - Commitments and Contingencies (Details Textual) $ in Thousands	May 31, 2025 USD ($)	Nov. 30, 2024 USD ($)
Number of Lease Commitments	2
Operating Leases Not Yet Commenced [Member]
Lessee, Operating Lease, Lease Not yet Commenced, Average Annual Rent	$ 702
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract	10 years
Lessee, Operating Lease, Lease Not yet Commenced, Number of Renewal Options	2
Lessee, Operating Lease, Lease Not yet Commenced, Renewal Term	5 years
Lease Obligations of Licensee Operators [Member]
Loss Contingency, Estimate of Possible Loss	$ 4,639	$ 5,131

The average amount of total annual rents for an operating lease not yet commenced.

No definition available.

Name:	bset_LesseeOperatingLeaseLeaseNotYetCommencedAverageAnnualRent
Namespace Prefix:	bset_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The number of operating lease renewal options available for a lease not yet commenced.

+ References

No definition available.

+ Details

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Namespace Prefix:	bset_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of commitments for leases that have yet to commence.

+ References

No definition available.

+ Details

Name:	bset_NumberOfLeaseCommitments
Namespace Prefix:	bset_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease renewal for lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 275
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482861/275-10-50-9

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482425/460-10-50-2

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_LeaseContractualTermAxis=bset_OperatingLeasesNotYetCommencedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=bset_LeaseObligationsOfLicenseeOperatorsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: