Note 19 - 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. 25, 2017	[1]	Aug. 26, 2017	[2]	May 27, 2017	[3]	Feb. 25, 2017	Nov. 26, 2016	[4]	Aug. 27, 2016	[5]	May 28, 2016	Feb. 27, 2016	Nov. 25, 2017	Nov. 26, 2016	Nov. 28, 2015
Numerator:
Net income	$ 4,974		$ 4,579		$ 5,842		$ 2,861	$ 5,045		$ 4,165		$ 3,385	$ 3,234	$ 18,256	$ 15,829	$ 20,433
Denominator:
Denominator for basic income per share - weighted average shares (in shares)														10,649,225	10,732,217	10,701,829
Effect of dilutive securities (in shares)														82,850	130,204	141,198
Denominator for diluted income per share — weighted average shares and assumed conversions (in shares)														10,732,075	10,862,421	10,843,027
Basic income per share:
Net income per share — basic (in dollars per share)	$ 0.46		$ 0.43		$ 0.55		$ 0.27	$ 0.47		$ 0.39		$ 0.31	$ 0.30	$ 1.71	$ 1.47	$ 1.91
Diluted income per share:
Net income per share — diluted (in dollars per share)	$ 0.46		$ 0.43		$ 0.54		$ 0.27	$ 0.47		$ 0.38		$ 0.31	$ 0.30	$ 1.70	$ 1.46	$ 1.88

[1] Net income includes a gain of $591 from the disposition of our interest in IMC, net of related income tax effects of approximately $363 (see Note 9), and income of $58 from the CDSOA, net of related income tax effects of approximately $36 (see Note 16).

[2] Income from operations included a gain of $1,220 from the sale of our Las Vegas, Nevada retail store (see Note 15).

[3] Net income includes a gain of $2,026 from the sale of an investment, net of related income tax effects of approximately $1,241 (see Note 9).

[4] Net income includes income of $148 from the CDSOA, net of related income tax effects of approximately $92 (see Note 16).

[5] Income from operations includes the benefit of a $1,428 award received from the settlement of class action litigation (see Note 15).