Note 13 - Earnings Per Share (Detail) - Reconciliation of basic and diluted earnings per share (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Aug. 25, 2012	Aug. 27, 2011	Aug. 25, 2012	Aug. 27, 2011
Net income (in Dollars)	$ 2,371	$ 417	$ 9,817	$ 54,709
Weighted average shares	10,945,784	11,454,409	11,074,265	11,492,497
Net income per share (in Dollars per share)	$ 0.22	$ 0.04	$ 0.89	$ 4.76
Add effect of dilutive securities:
Weighted average shares	123,835	124,849	97,727	87,826
Net income per share (in Dollars per share)	$ (0.01)		$ (0.01)	$ (0.04)
Net income (in Dollars)	$ 2,371	$ 417	$ 9,817	$ 54,709
Weighted average shares	11,069,619	11,579,258	11,171,992	11,580,323
Net income per share (in Dollars per share)	$ 0.21	$ 0.04	$ 0.88	$ 4.72