Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Nov. 29, 2008	$ 57,102	$ 346	$ 73,160	$ (429)	$ 194,852
Balance (in Shares) at Nov. 29, 2008	11,420,431
Comprehensive income (loss)
Net loss (income)			(22,699)		(22,699)
Actuarial adjustment to supplemental executive retirement defined benefit plan				125	125
Net change in unrealized holding gains				2,422	2,422
Total comprehensive loss (income)					(20,152)
Issuance of common stock	476	(277)			199
Shares of common stock issued (in Shares)	95,185
Purchase and retirement of common stock	(304)	229			(75)
Shares of common stock purchased and retired (in Shares)	(60,900)
Stock-based compensation		183			183
Balance at Nov. 28, 2009	57,274	481	50,461	2,118	110,334
Balance (in Shares) at Nov. 28, 2009	11,454,716
Comprehensive income (loss)
Net loss (income)			(2,002)		(2,002)
Actuarial adjustment to supplemental executive retirement defined benefit plan				(666)	(666)
Net change in unrealized holding gains				(1,879)	(1,879)
Total comprehensive loss (income)					(4,547)
Issuance of common stock	521	(379)			142
Shares of common stock issued (in Shares)	104,258
Stock-based compensation		376			376
Balance at Nov. 27, 2010	57,795	478	48,459	(427)	106,305
Balance (in Shares) at Nov. 27, 2010	11,558,974				11,558,974
Comprehensive income (loss)
Net loss (income)			55,342		55,342
Actuarial adjustment to supplemental executive retirement defined benefit plan				(133)	(133)
Net change in unrealized holding gains				(48)	(48)
Regular dividends ($0.10 per share)			(1,092)		(1,092)
Special dividend ($0.50 per share)			(5,665)		(5,665)
Total comprehensive loss (income)					55,161
Issuance of common stock	771	(506)			265
Shares of common stock issued (in Shares)	154,158
Purchase and retirement of common stock	(1,854)	(398)	(713)		(2,965)
Shares of common stock purchased and retired (in Shares)	(370,800)
Stock-based compensation		426			426
Balance at Nov. 26, 2011	$ 56,712		$ 96,331	$ (608)	$ 152,435
Balance (in Shares) at Nov. 26, 2011	11,342,332				11,342,332