Stockholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 01, 2012	Sep. 01, 2012	Jun. 02, 2012	Mar. 03, 2012	Dec. 03, 2011	Aug. 27, 2011	May 28, 2011	Feb. 26, 2011	Dec. 01, 2012	Dec. 03, 2011	Nov. 27, 2010
Earnings Per Share
Loss as reported from continuing operations for computation of basic and diluted per share results, net of tax	$ (1,026)	$ 1,882	$ (412)	$ (1,125)	$ 603	$ (568)	$ (766)	$ (2,266)	$ (681)	$ (2,997)	$ (5,015)
Income as reported from discontinued operation for computation of basic and diluted per share results, net of tax				1,647	109	140	137	137	1,647	523	528
Net income (loss)	$ (1,026)	$ 1,882	$ (412)	$ 522	$ 712	$ (428)	$ (629)	$ (2,129)	$ 966	$ (2,474)	$ (4,487)
Weighted average shares outstanding for computation of basic per share results									5,138,000	5,130,000	5,105,000
Adjusted weighted average shares for computation of diluted per share results									5,138,000	5,130,000	5,105,000
Incremental shares from assumed exercise of stock options excluded due to anti-dilutive effect									5,000	8,000	15,000