Note 9 - Earnings Per Share (Details) - Reconciliation of basic and diluted earnings per share (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Aug. 31, 2013	Aug. 25, 2012	Aug. 31, 2013	Aug. 25, 2012
Reconciliation of basic and diluted earnings per share [Abstract]
Net income (in Dollars)	$ 556	$ 2,371	$ 3,489	$ 9,817
Weighted average shares	10,742,625	10,945,784	10,717,506	11,074,265
Net income per share (in Dollars per share)	$ 0.05	$ 0.22	$ 0.33	$ 0.89
Weighted average shares	163,204	123,835	161,679	97,727
Net income per share (in Dollars per share)		$ (0.01)	$ (0.01)	$ (0.01)
Net income (in Dollars)	$ 556	$ 2,371	$ 3,489	$ 9,817
Weighted average shares	10,905,829	11,069,619	10,879,185	11,171,992
Net income per share (in Dollars per share)	$ 0.05	$ 0.21	$ 0.32	$ 0.88