Note 18 - Earnings Per Share - Reconciliation of Basic and Diluted Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended													12 Months Ended
	Nov. 30, 2019	[1]	Aug. 31, 2019	Jun. 01, 2019	Mar. 02, 2019	[2]	Nov. 24, 2018	[3]	Aug. 25, 2018	May 26, 2018	[4]	Feb. 24, 2018	[5]	Nov. 30, 2019	Nov. 24, 2018	Nov. 25, 2017
Net income (loss)	$ (5,138)		$ 2,157	$ 445	$ 608		$ 1,897		$ 2,945	$ 4,289		$ (913)		$ (1,928)	$ 8,218	$ 18,256
Denominator for basic income per share - weighted average shares (in shares)														10,285,511	10,651,351	10,649,225
Effect of dilutive securities (in shares)														0	40,424	82,850
Denominator for diluted income per share — weighted average shares and assumed conversions (in shares)														10,285,511	10,691,775	10,732,075
Net income (loss) per share — basic (in dollars per share)	$ (0.50)		$ 0.21	$ 0.04	$ 0.06		$ 0.18		$ 0.28	$ 0.40		$ (0.09)		$ (0.19)	$ 0.77	$ 1.71
Net income (loss) per share — diluted (in dollars per share)	$ (0.50)		$ 0.21	$ 0.04	$ 0.06		$ 0.18		$ 0.28	$ 0.40		$ (0.09)		$ (0.19)	$ 0.77	$ 1.70

[1] Loss from operations includes a charge for the impairment of goodwill of $1,926 (see Note 8) and charges of $4,431, $700 and $149 for impairment of long-lived assets, litigation costs and lease termination costs, respectively (see Note 15).

[2] Income from operations includes a charge of $835 charge arising from certain eligible employees’ acceptance of voluntary early retirement package (see Note 15).

[3] Income from operations includes a $469 asset impairment charge related to our Torrance, California retail store and a $301 charge for lease exit costs related to the closing of a store in San Antonio, Texas (see Note 15). Net income includes a $704 tax benefit arising from the final adjustment to our interim estimates of the impact of reduced federal income tax rates on the valuation of our deferred tax assets (see Note 14).

[4] Income from operations includes a gain of $165 from the sale of our Spring, Texas retail store (see Note 15). Net income includes a benefit of $155 in income tax expense arising from additional adjustments to the remeasurement of our deferred tax assets resulting from the Act (see Note 14).

[5] Net loss includes a $2,157 charge to income tax expense arising from the remeasurement of our deferred tax assets due to the reduction in the Federal statutory income tax rate included in the Tax Cuts and Jobs Act (see Note 14).