Note 2 - Interim Financial Presentation (Details Textual) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Aug. 26, 2017	Aug. 27, 2016	Aug. 26, 2017	Aug. 27, 2016
Excess tax Benefits on Share-based Compensation	$ 227	$ 46	$ 554	$ 87

Amount of excess tax benefits on share-based compensation included in income tax provision.

No definition available.

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Namespace Prefix:	bset_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration