Note 13 - Capital Stock and Stock Compensation - Restricted Stock Awards (Details) - $ / shares	12 Months Ended
Nov. 30, 2019	Nov. 24, 2018
Restricted Shares Outstanding (in shares)	90,153
Restricted Stock [Member]
Restricted Shares Outstanding (in shares)	90,153	81,036
Granted (in dollars per share)	$ 15.81
Restricted Stock [Member] \| January 10, 2017 [Member]
Restricted Shares Outstanding (in shares)	36,000
Granted (in dollars per share)	$ 29.05
Remaining Restriction Period (Year)	1 month 6 days
Restricted Stock [Member] \| January 11, 2018 [Member]
Restricted Shares Outstanding (in shares)	36,000
Granted (in dollars per share)	$ 35.75
Remaining Restriction Period (Year)	1 year 1 month 6 days
Restricted Stock [Member] \| March 8, 2017 [Member]
Restricted Shares Outstanding (in shares)	9,653
Granted (in dollars per share)	$ 18.13
Remaining Restriction Period (Year)	3 months 18 days
Restricted Stock [Member] \| July 23, 2019 [Member]
Restricted Shares Outstanding (in shares)	5,000
Granted (in dollars per share)	$ 12.34
Remaining Restriction Period (Year)	2 years 7 months 6 days
Restricted Stock [Member] \| October 9, 2019 [Member]
Restricted Shares Outstanding (in shares)	3,500
Granted (in dollars per share)	$ 14.37
Remaining Restriction Period (Year)	2 years 10 months 24 days

The restricted period of time on other than stock (or unit) option plans.

No definition available.

Name:	bset_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsRestrictedPeriod
Namespace Prefix:	bset_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardDateAxis=bset_January102017Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardDateAxis=bset_January112018Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardDateAxis=bset_March82017Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardDateAxis=bset_July232019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardDateAxis=bset_October92019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: